Prosecutor Anna Håkansson in Malmö launched a formal murder investigation on Wednesday after police found a suicide note in the man’s home.
“The background here seems to be relationship-based,” police investigator Thomas Håkansson told newspaper Sydsvenskan.
Police are working on the hypothesis that the father intentionally swerved over to the wrong side of the road in his Saab in order to meet an oncoming yellow Skånetrafiken bus head on.
The 37-year-old and his two sons, 8 and 4, all lost their lives in the crash outside Staffanstorp, 14-kilometres east of Malmö.
As the murder suspect is dead, the ongoing investigation will not lead to a criminal indictment. If she is to receive compensation for the deaths of her two sons, the boys’ mother will have to file a civil suit against the dead man’s estate.