The 36-year-old man from Uppsala has been identified as the leader of the Foxtrot network and is suspected of being one of the parties in the wave of violence - with fatal shootings and blasts - that has washed over the Stockholm area since the turn of the year.
The man has been detained in absentia for three years on suspicion of particularly serious drug offences and is wanted internationally - but is not left out by Turkey, where he is said to have become a citizen.
Fled Sweden
After an escalating threat in the summer of 2018, the 36-year-old fled Sweden - which was allowed by the Swedish Prison and Probation Service, despite the fact that the man was on parole with one year left of the sentence.
"It's not normally something we allow. It is always the police who make the assessment that the threat is so great that it is inappropriate for this person to stay in Sweden. But far from everyone who has a threat against them is allowed to go abroad, says Henrik Svärd.
How do you check that the person is not committing new crimes abroad?
- That's not possible, is the short answer.
"Damn messy"
Jale Poljarevius, intelligence chief in Region Mitt, says he is not familiar with the information.
"It looks pretty damn messy to let him go abroad, but then you didn't know what we know now," he says.
In a note, which SVT has read, the Probation Service writes: "The surveillance should not stop due to high efforts on pro-criminal attitudes and pro-criminal interaction", but since the contact with the man only took place over the phone and email, he did not undergo the efforts aimed at breaking his criminal mindset.
A year later, according to the suspects, the man allegedly built up a large-scale drug business.
SVT has sought the prosecutor who asked for the 36-year-old to be wanted internationally.