Who killed Swedish PM Olof Palme? Long-running murder mystery has finally been solved
- Palme’s 1986 assassination was followed by years of botched investigations and conspiracy theories
- Prosecutor Krister Petersson has identified one man who ‘we can’t get around one person as the perpetrator’

After 34 years of conspiracy theories, Swedes just learned who killed Olof Palme, their former prime minister.
At a highly anticipated press briefing in Stockholm on Wednesday, prosecutor Krister Petersson said the assassin was Stig Engstrom, a former employee of Skandia who committed suicide two decades ago. Engstrom had worked as a graphic designer for the firm. Because he is no longer alive, the case will now be closed.
“We can’t get around one person as the perpetrator. He is Stig Engstrom,” Petersson told reporters.
With the announcement, police hope the mystery and intrigue surrounding Palme’s 1986 murder will be put to rest.
“This is important for the entire country,” Prime Minister Stefan Lofven said, describing the case as a national wound.
Palme’s assassination took place shortly before midnight on February 28, 1986. The killer approached the prime minister and his wife on a quiet street corner as they were walking home after a visit to the cinema.