- There is shooting at the school. - Is anyone hurt?
- A man is injured. Come quickly. - Do you know if he's breathing?
- Is he breathing? - Which school did you say?
Östra skolan.
We heard five shots. He's bleeding badly.
- Can you see where from? - From his mouth.
- Put him on his back. - He is breathing.
It is very important to monitor his breathing, so he keeps breathing.
- He's not breathing anymore. - Are you doing chest compressions?
- Yes. - And he's not breathing anymore?
On May 14, 2017, the police received a call about a man who's been shot-
- near Östra skolan in Katrineholm.
It was about 8.15 pm.
The emergency number was called. Police patrols were dispatched.
We did the usual things, we cordoned off the area-
and spoke to people in the vicinity, looking for witnesses.
It was in an open area-
below a school building where he was shot.
There were witnesses, they didn't see the shooting but they heard it.
I was lying on the couch and suddenly I heard-
something that sounded like five rapid shots.
The casings found at the scene were quite close together.
This indicated that the shooter was standing still when they fired.
Someone fired seven shots and six of them hit the victim.
It was clear that this was murder.
It's just around the corner, behind my house.
It's horrible that a human being actually died. Very tragic.
The man I saw ran off to the west.
- So he's not still there? - No, of course not.
Can you describe the perpetrator?
Young, wearing sneakers, dark Adidas ones with three stripes.
It looked like his clothes were blue.
The initial hunt for this perpetrator-
involved getting a dog patrol to follow his tracks.
This is where Filip was shot. Somewhere here is the lamppost-
that witnesses saw the person grabbing-
and holding to stop himself from falling over.
He ran off here, the distance is 25 meters.
The dog got a scent and followed the trail.
The trail led to the bike and footpath and across the bridge.
The trail ends here, where the dog lost the scent.
At around 8 pm last night, the police received a call-
about a shooting at Östra skolan in Katrineholm-
- and a man seen lying on the ground.
Passers-by tried to help the man by giving him CPR.
Someone also saw a person running away in an unknown direction.
We had sightings of a man running away.
Wearing dark clothes.
We had no theories, we didn't know why this had happened.
We started from scratch.
It was an execution, because there were so many shots at one target.
The deceased man is 35-year-old father Filip Viking.
His parents live just a few hundred yards from the crime scene.
We were sitting upstairs. I think it was about 10 pm.
The doorbell rang, and it was strange that someone was ringing at 10 pm.
I looked out the window to see who it was.
There were two police officers. They showed us their ID.
They asked if they could come in and I asked what had happened.
I thought something had happened to Filip, that he'd got into a fight.
I think the male officer said that he had been shot.
I asked what happened, and the female officer said "Filip is dead."
Our world collapsed.
Filip was positive and funny, he saw the humor in everything.
He was kind, often too kind. A little gullible.
He liked everyone. Including those he probably shouldn't have liked.
He enjoyed being with us and cooking with us.
He called one of us nearly every day.
He didn't have anything much to say. He'd ask: "What are you doing?"
He needed the contact.
Filip Viking was a father to three children.
He was a much-loved brother to his brothers.
And he was a good son to his parents.
He had met a girl recently who lived outside Katrineholm.
She had children too. He seemed to be a very nice person.
We thought about threats, whether anyone could have threatened him.
We found something about something work-related in Trollhättan.
He hadn't been paid. But it was no big deal.
Information came in that Filip had told-
family and friends that he was afraid of a person-
who was then serving a jail sentence at Karsudden Hospital.
He was worried that person would make trouble.
It emerged when we spoke to Filip's new girlfriend-
that her ex was in Karsudden. He was very jealous.
The ex-boyfriend was serving a jail sentence-
for aggravated extortion and aggravated weapons offenses.
As he was mentally unwell in jail, he was transferred-
to a guarded ward at Karsudden Hospital.
The girlfriend had separated from him before he went to jail.
She told the police about the separation.
Her ex bought a house very close to her-
so that he could watch her at all times.
See what she did and didn't do. He set up cameras and filmed her.
He broke into her house. She reported it to the police.
You might think he was also a threat to Filip.
Filip and his new girlfriend didn't publicize their relationship.
But eight days before the murder. they had made an exception.
They were extremely strict about posting pictures-
- on social media.
But at one point, she told me, they had posted a picture-
of them kissing on a date somewhere.
I don't know if the ex-boyfriend saw it, or what.
Filip's girlfriend was worried-
that the ex-boyfriend would get out of the jail sentence he was serving.
She said she was worried after visiting him.
They had children together.
Her children had said that she had a new boyfriend.
He had asked her questions about who the new guy was.
This worried her even more.
When the police investigated whether the ex could have been the killer-
they see that he was locked up at Karsudden at the time of the crime.
The police continued interrogating Filip's friends and family-
- in the hope of finding other clues.
Before the murder, Filip had visited his parents.
They live near Östra skolan, a few hundred yards away.
He had received a call there.
During that call he had seemed a little worried.
We believe the purpose of the call was to set up a meeting-
- at Östra skolan.
On May 14, Filip visited us. We cooked hamburgers, I think.
He got a call ten minutes before he left.
I asked what it was about, because it sounded a little strange.
He said it was nothing special.
I think he got a text message a little while later.
Something didn't feel right when he got that call.
Or maybe it was the text message, I don't know.
He went a little too fast compared to his normal routine.
We usually got a hug, he tended to be more open.
He was a little short when he left. Then... well.
Then... we never saw him again.
Could the call or text message have something to do with the murder?
It became important to find out who Filip was communicating with-
- when he was with his parents.
The belongings Filip was carrying when he was killed-
were checked and looked at.
Something that is important to us is cell phones. They are examined.
At this point, his cell phone was important.
Not all phones can be opened. We send them to different locations-
to get help from people who know these systems better.
It doesn't always work in every case. That's what happened here.
It has never been opened and examined.
When the police failed to find out who he'd been in contact with-
they were forced to try to get the information-
through the cell tower dumps near the crime scene.
The first analysts began to investigate-
the phone activity Filip had at his parents' house before the murder.
Was it the call that made him go to the school, or the text message?
Before the murder, Filip had telephone contact-
with some colleagues and his best friend.
The last incoming call was from his best friend.
Then there were seven minutes of data traffic only.
We can't say with whom or about what he was communicating.
It was probably during the data communication via Wickr-
that he was asked to go out and meet someone at Östra skolan.
Wickr is an app, a chat app, that encrypts messages.
It is not possible for outsiders to read the messages.
They are not stored on any servers. They are deleted immediately.
When you look at the communication that took place at that time-
there were 35,000 activities in the telephone network.
Initially it was really like looking for a needle in a haystack.
As the police couldn't trace the data traffic Filip had-
- via the encrypted chat app Wickr-
police analysts had to rely on finding patterns-
in the general telephone traffic from the cell tower dumps.
After a few days of processing we identified a cluster-
of telephone numbers that had frequent contact with each other.
Who in turn had contact with other numbers.
It formed telephone chains, you could say.
We could see A talking to B, B talking to C, C talking to A.
We could see that the communication flowed.
Some numbers stood out as very active, especially one number.
That number belonged to a well-known Katrineholm resident.
He had been appointed Katrineholm resident of the Year.
He had participated in the TV show "Robinson".
- We're going to have a rice issue. - Are you joking?
- It's important, Adnan. - Stop talking, this is what I did.
Adnan was in a hurry to get the food going so he measured it himself.
Adnan has a shorter fuse than anyone I've ever met.
And he's never wrong.
It doesn't happen to Adnan. He is never wrong.
That's enough now, you can measure it 100 days in a row if you want.
I knew Adnan had a family with children.
I felt that he was a father and humble family man to them.
Adnan was also, in the community he lived in-
with his family and children, a soccer coach.
He's someone who wants to be seen and heard. That was my experience.
The crimes that Adnan was involved in were drugs related.
But also other crimes such as extortion.
Adnan had a lot of contacts, a large network of criminal contacts.
I think Adnan's intention was-
- to be a leader.
A gang leader, a figure others looked up to.
He was surrounded by younger people-
who he took under his wing in some way.
We couldn't find any links between Adnan and Filip.
From the cell tower dumps-
the police identified who Adnan had spoken to on the night of the murder.
Suddenly new people appeared in the investigation.
Adnan had been in contact with his friends.
Close contact with Aron, Erik and Freddie.
That was interesting. There's nothing strange about it-
but there were interesting contacts in the investigation.
A few hours before the murder one of our colleagues made an observation.
Adnan, Erik and Freddie and someone he can't identify-
- are standing near Adnan's home.
This observation was important in the investigation-
because it is very close to when the murder took place.
When the police investigated phone traffic at the scene at the time-
of the suspected meeting between Adnan and his friends-
there is another number that caught the attention of the analysts.
The number went to an unregistered prepaid card ending in 5006.
The telephone number 5006 was used for a limited time in 2017.
It started in Tele 2's network sometime in April-
and ended one minute after Filip Viking was shot to death.
We know that there were several different people using the phone.
It's logical, it makes it difficult for the police to determine-
that a specific person was using it at a particular time.
A "burner phone" is used to contact other accomplices.
It's usually tossed once the crime has been committed.
The number ending in 5006 had a lot of contact with Adnan's phone.
Both before and just after the event.
On May 12, two days before the event-
- we saw in the traffic data-
that number 5006 contacted Filip Viking's phone-
on two occasions, in close proximity to each other.
Filip had been in a car with a woman.
They were on their way from Norrköping to Katrineholm.
When Filip hung up-
he told the woman that Adnan had contacted him.
Filip had been surprised by this.
It was perhaps unusual for Adnan to call him.
Adnan had asked him to download an app called Wickr-
- that they could use to communicate.
In connection with the analysis of the presumed prepaid card-
- ending in 5006-
the police discovered that Adnan, at the time of the crime-
was in contact with another prepaid card number.
When the police looked closer, they saw it was bought with a credit card-
which was registered to the police authorities.
Spontaneously I thought: "What the hell is going on?"
A murder suspect is talking to the police?
The police and prosecutors started internal investigations-
to see who had access to the account linked to the mobile phone-
- who'd had contact with Adnan.
I contacted the police and asked who was in charge of the account.
I got the name of a person who was a handler.
It was only then that I found out that Adnan Mzori was an informer.
From the pre-trial material it appeared-
that a man in his 40s had, over an extended period-
- been a police informer.
I called the handler in to interrogate him. He then told me-
about his phone contact with Adnan in the hour after the murder.
We could see it in the telephone lists.
He had met Adnan to pump him for information the day after-
- literally, about Filip's murder.
At all times Adnan denied any knowledge of the murder.
Adnan had been a police informer for five years.
Most officers did not know that Adnan Mzori was a police informer.
Only a small circle knew that.
All those who worked with the investigation and in Katrineholm-
had no idea that he was an informer.
It came as a surprise and it made things complicated for us.
But it didn't affect our view of him.
He was a murder suspect. That didn't change anything.
To make progress, the police started interrogating people close to Adnan.
With lots of aggravating circumstances already-
the police discovered another hurdle.
Many of the people close to Adnan moved in criminal circles.
Investigating a crime in criminal circles is particularly difficult.
As everyone knows, there is a culture of silence.
It is difficult to get information and to interrogate people.
People "lose their memory" rather than talk to the police.
Many people in the investigation are involved in criminal activities.
Mainly drugs and addiction.
What I think about it is if it affects our investigation.
It clashes with the image we had of Filip.
Filip comes from another place, really.
The police had to rely on the analysis of the telephone traffic-
and dug into the interactions Adnan had in connection with the crime-
with one of his acquaintances named Lars.
Lars was a young guy, with a small addiction problem.
Lars lived in Sågmon.
He lived in a cottage outside his mother's house.
Lars had a lot of people coming and going from his home.
People used drugs in his house.
Lots of things are small puzzle pieces in the investigation.
One piece of the puzzle was when we found out that Adnan contacted Lars.
Lars has some charger to be picked up in Sågmon.
Lars wasn't home.
Lars called his mother and said that someone would come to get it.
We think the "charger" might be a weapon.
An hour before the murder a taxi was ordered from number 5006.
On May 14, someone called-
and wanted a taxi from the Coop on Bievägen.
I went to pick him up, a guy got in and sat next to me.
He said we had to wait for another person.
We sat there for three or four minutes, and another guy got in.
He jumped into the backseat.
They wanted to be driven to Sågmon and back.
They were young people.
Between 17 and 35, something like that.
That's my recollection of it.
You can see a representation here on the map.
The car marked the coordinates-
during the journey towards Sågmon.
Phone number 5006 moves in sync with the taxi's GPS positions.
Many of the calls that take place at this time-
are calls to and from Adnan Mzori's phone.
I had to wait while one guy went in to get something.
We sat there. The other guy stayed in the car.
We were there for five minutes, then he came and sat in the backseat.
And we left.
When the taxi returned to Katrineholm-
the phone followed, with the same movement pattern.
This means in our analysis we can show that during the taxi journey-
this phone was probably in the taxi.
We went to Stensättersgatan.
It's roughly next to Östra skolan, around there.
I dropped them off there. I didn't see if they had any weapons.
But I've heard that from others and from the police-
that they probably did. It's chilling.
That I might have been so closely involved in a murder.
There's no proof or anything, but it's a very...
...big coincidence otherwise if they weren't involved.
The police wiretapped Adnan's phone.
In conjunction with the search of Lars' and his mother's homes-
in the hope of finding the murder weapon, Adnan got a call from Lars.
They're at my place. Mom called. Ten of them are searching the farm.
- Mamma's dead? - Mamma's dead.
She was like, "What did you do?" "I haven't done anything."
- When? Just now? - Yes, they are here now.
Straight after the conversation with Lars, Adnan called his girlfriend.
- Hi. - Hello.
- What are you doing? - Nothing.
Get out. Lock the door and get out.
- I should lock up and go out? - Go out and chill, what do I know.
People don't talk openly about murder on the phone.
They use other mediums, or they meet in person.
- Why do you say that? - Don't talk back to me, stop.
- I need an explanation. - Just shut up!
I can't tell you on the phone! Are you stupid?
We wiretapped a number of people. In the end, it didn't add up to much.
What we were able to find was that the weapon was called Jasmine.
- What about Jasmine, where is she? - I don't know.
Is she in Stockholm? You're just like: "She's horny."
Neither the wiretap nor the house searches produced results.
Suddenly the investigators found out-
that another unit was investigating an offense involving Adnan.
There's something there to suggest that there might be a connection-
between Adnan and the ex who was in Karsudden.
Adnan and the ex had a mutual acquaintance.
The ex's mother.
There was a parallel investigation for aggravated extortion.
The ex's mother ran a business.
Adnan had got a foot in there.
Somewhere along the way-
Adnan began to extort money from the mother.
Adnan talked about the Hells Angels and Bandidos and motorcycle gangs-
- that could hurt her son.
So the mother paid sums to Adnan.
The sums were quite large and it went on for several years.
From what we could find, almost 13 million Swedish kronor-
- had been paid by the mother.
After almost two years, the mother got help from an external consultant.
The consultant examined the case and couldn't find-
that there were any direct threats from the Hells Angels or Bandidos.
What he could see was that Adnan took the money himself.
He made contact with Adnan and informed him of-
how Bandidos and Hells Angels would view-
Adnan using their brand to extort money from someone.
In connection with that the crime stopped.
The police looked again at Adnan's phone traffic.
They found something that might indicate that the ex found out-
what Adnan did, and perhaps demanded a favor.
After the murder, Adnan's phone was in contact with Karsudden.
It was a short conversation, it lasted about 15 seconds.
Our own and the prosecutor's theory about the call to Karsudden-
was quite naturally that it was some kind of debriefing to the ex.
That was our hypothesis, to say that the murder was done.
The police here say-
that it is the biggest investigation that they have conducted.
Hundreds of interrogations and tip-offs have poured in.
The case was extremely complicated.
Everyone involved with experience in these kinds of investigations-
said that it was the most difficult investigation they've worked on.
There were so many branches, it was all over the place.
We got a lot of information from the cell tower dumps.
We had 13 people suspected of various types of crime.
We had about 30 seized phones to go through.
It was a huge amount of information to process. It was tough.
The informer element also appeared in this part-
that we didn't know about from the beginning.
The police begin arresting a large group of people-
that they suspected may be involved in the murder.
These included the ex at Karsudden-
and the friends Adnan had contact with on the night of the murder.
In the initial interviews with Adnan he was very talkative.
He was communicative, very friendly and accommodating.
But I could feel that he was manipulative.
We felt quite empty when we left there.
We didn't know what he had said. It's a bit hard to explain.
I can't explain it. That was the feeling.
The police asked Adnan where he was at the time of the crime.
Adnan said he was at the gas station buying coffee.
He really wanted us to check the tapes.
To see if Adnan's alibi checked out-
the police seized the gas station's surveillance footage.
On the video, the police could see Adnan buying coffee.
My feeling is that he made that purchase-
because he wanted us to know that he was there.
On July 19, Adnan requests another interrogation.
We hadn't planned to talk to him then, but he wanted us to.
He said that he had important information for us.
He said that he received a visit on the night of the murder-
from Aron who arrived by taxi and threw the gun on the floor.
Adnan and his girlfriend hid the weapon near the hospital park.
Later they moved the weapon to Sågmon.
The police asked Aron what he did on the night of the murder-
to see if his story checked out with Adnan's.
Was Aron involved? He says he wasn't.
He didn't go there, he was at home.
He'd been feeling ill, so he wasn't out that night.
He was at home, he wasn't at Adnan's that night.
Aron is a pretty young guy.
He fitted the description that we got initially.
Aron tells us that he knows Adnan.
He babysat his children and he felt a bit used by him.
He had to run errands for Adnan.
The police wanted to investigate if what Adnan said-
about where the weapon was hidden was correct.
This is the property where Lars lived on his mother's property.
We used metal detectors and heard a beep.
Then we started digging.
Here we started to make out a plastic bag, glimmering.
We carefully exposed the surface so as not to damage fingerprints.
Here the bag has been uncovered.
Inside the bag we found a weapon, ammunition-
and a cartridge that is for a different weapon.
The weapon is similar to our service weapon, but it's a Glock.
The weapon was sent to the NFC. It was the murder weapon.
They can match it to the casings and fragments found in the victim.
Aaron's DNA was on the murder weapon.
By the time charges were brought, the investigation had grown huge.
There were 13 defendants and a variety of criminal charges.
Aron was accused of carrying out the murder.
The ex in Karsudden was prosecuted for solicitation of murder.
Adnan was prosecuted for more than one crime.
In addition soliciting the murder of Filip Viking-
he was also accused of blackmailing the ex's mother-
- rape and endangering the public.
Almost a year after the murder of Filip Viking-
the trial began in Nyköping District Court.
Early on, the prosecutor encountered more setbacks.
At the trial, it turned out-
that witnesses who had provided information in various contexts-
couldn't remember. Or maybe didn't want to remember.
They didn't confirm the information they had given in the interrogations.
Adnan also changed what he had said when interrogated.
This happened when the prosecutor questioned Adnan-
about his relationship to suspected shooter Aron.
- You described Aron as a soldier. - That's not true.
- A helper who can do things. - That's not true.
- It's not true? - I don't remember it.
You said this in the interrogation of June 19.
- Without a lawyer? - The one you wanted us to hold.
I was in a bad place, yet you questioned me without a lawyer.
Some of the suspected murderers blamed each other.
All of them denied being involved personally.
What we argued when the investigation was finished-
was that the ex had ordered the murder.
It was out of jealousy, he wanted to get rid of Filip Viking.
That's what I claimed in court and I had evidence to prove-
- that Filip was afraid of the ex.
For the link to Adnan, there was information from the accomplices.
They said there was contact between Adnan and the ex.
We had the phone traffic which I found disturbing.
Right after Adnan met his handler after the murder-
he called Karsudden where the ex was.
I've never called there, you have to get approved first.
- Just like in jail. - That's not what you said before.
- You said you called Karsudden. - That's not true.
The 40-year-old was collected and focused throughout the interrogation.
He repeatedly stated that he had forgotten what he said previously-
- and changed his story.
Aaron was asked what he knew about Adnan's relationship-
to the ex in Karsudden and the murder.
What do you know about the plan to murder Filip Viking?
I can start by saying that there were two occasions.
The first was when Adnan said that he had called Karsudden.
This came from him.
He reportedly called the ex and talked to him about Filip.
- Anything else? - The second time...
...I was sitting by the church and Adnan walked past.
He said, "I have to eliminate Filip."
He's totally trashed me here in court and also in the interrogations.
This is a man who's played with my children.
It's the same guy who today is accusing me of murder.
Adnan was convicted of accessory to murder, extortion and fraud.
He was acquitted of rape.
The district court sentenced him to 14 years' imprisonment.
Aaron was convicted of murder and money laundering and got 18 years.
But the ex was acquitted by the district court.
The judgment was appealed and the case went to the Court of Appeal-
which in turn led to new sentences for Adnan and Aron.
Adnan's sentence was increased by nine months.
They considered that there wasn't enough evidence to convict Aron.
He was acquitted of the murder charges.
The Court of Appeal believed that we had the right set of people-
but it was impossible to say exactly who did what.
I thought we were safe with who pulled the trigger.
But I am no judge.
The Court of Appeal said that there weren't sufficient grounds-
not enough evidence that Aaron was the shooter.
This means that we don't have anyone holding the gun.
So we have an unsolved murder.
The investigation is open as the statute of limitations doesn't apply.
We hope that one day we will know who was holding the gun.
And perhaps why Filip was killed.
Why is really what you want to know in the first place.
That's actually what's most important. Why?
Not who did it, but why. That's most important to us.
As it stands, we'll probably never know.
Subtitles: Nicola Monchy www.sdimedia.com