Palme's assassination on a Stockholm street on 28 February 1986 was the first murder of a national leader in Sweden since Gustav III in 1792, and had a great impact across Scandinavia. Local convict and addict Christer Pettersson was originally convicted of the murder in district court but was unanimously acquitted by the Svea Court of Appeal. On 10 June 2020, Swedish prosecutors held a press conference to announce that there was "reasonable evidence" that Stig Engström had killed Palme. As Engström committed suicide in 2000, the authorities announced that the investigation into Palme's death was to be closed. The 2020 conclusion has faced widespread criticism from lawyers, policemen and journalists, decrying the evidence as only circumstantial, and too weak to ensure a trial had the suspect been alive.