In May, a 20-year-old man was shot to death in Berga.
In August, a 16-year-old was shot dead and a 15-year-old was injured in the same residential area.
Just a few weeks later, a leader figure in a criminal gang is shot to death at a restaurant in the center of Skäggetorp and in October, a man is shot dead with several shots in Lambohov.
Over 2000 interrogations
Police still have no suspects in any of the fatal shootings.
But according to the police, a large amount of information has been obtained in the cases.
These include more than 2,000 interrogations and the investigations consist of approximately 3,500 documents.
- We work with analyzing the information in these investigations to see if there is information that can lead us to a prosecution.
We are also waiting for a response from NFC regarding several surveys.
At the moment, we can not go out with information about the type of investigations in question, writes Linköping Police Chief of Investigation John Andåker in an email to SVT News.
Detained for attempted murder
In two of the shooting cases from this year, there are people detained.
A main trial is currently underway against a man suspected of attempted murder after chasing people with a gun in Lambohov in August and several people are in custody on suspicion of involvement in an attempted murder in Ryd on 15 September.
According to several information to SVT Nyheter Öst, the shootings are probably based on several conflicts, both between and within, criminal gangs active in Linköping's drug market.
Shootings are historically difficult to investigate. In the clip, Chief Prosecutor Eva Nemec Nordh talks about three conditions that increase the chance that a shooting case will lead to prosecution:
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In the clip, Chief Prosecutor Eva Nemec Nordh lists three conditions that make it easier for a shooting case to lead to prosecution.
Photo: Axel Brantemo / SVT