It's a mystery that's as unusual as the JFK assassination.
"The assassination of Olof Palme, the Prime Minister of Sweden, took place on Friday, February 28, 1986, in Stockholm, Sweden, at 23:21 Central European Time (22:21 UTC). Palme was fatally wounded by gunshots while walking home from a movie theatre with his wife Lisbet Palme on the central Stockholm street Sveavägen."
Here are some of the suspects:
Victor Gunnarsson - A Swedish right-wing extremist, he was quickly arrested for the murder but was soon released, after a dispute between the police and prosecuting attorneys. Gunnarsson had connections to various rightwing extremist groups, among these the European Workers Party, the Swedish branch of the LaRouche Movement. The extent of his connection to the latter group was having signed a petition they were circulating on the streets of Stockholm. Also, Palme hostile libellous pamphlets from the party were found in Gunnarssons home outside Stockholm in the following search.
The PKK - Hans Holmér, the Stockholm police commissioner, followed up an intelligence lead passed to him (supposedly by Bertil Wedin) and arrested a number of Kurds living in Sweden, after allegations that one of their organisations, the PKK, was responsible for the murder. The lead proved inconclusive however and ultimately led to Holmér's removal from the Palme murder investigation. Fifteen years later, in April 2001, a team of Swedish police officers went to interview Kurdish rebel leader Abdullah Öcalan in a Turkish prison about Öcalan's allegations that a dissident Kurdish group, led by his ex-wife, murdered Palme. The police team's visit proved futile.
Christer Pettersson - More than a year and a half after Palme's death Christer Pettersson, a criminal, drug user and alcoholic, was arrested for the murder in December 1988. Picked out by Mrs Palme at an identity parade as the killer, Pettersson was tried and convicted of the murder, but was later acquitted on appeal to the High Court. Pettersson's appeal succeeded for three main reasons:
* the murder weapon had never been found;
* no clear motive for the killing; and,
* doubts about the reliability of Mrs Palme's evidence
The Apartheid Regime - On February 21, 1986–a week before he was murdered–Palme made the keynote address to the Swedish People's Parliament Against Apartheid held in Stockholm, attended by hundreds of anti-apartheid sympathizers as well as leaders and officials from the ANC and the Anti-Apartheid Movement such as Oliver Tambo. Cuban artist Rafael Enriquez depicted Palme on a poster with an extract from that 1986 speech:
"Apartheid cannot be reformed, it has to be eliminated."
Ten years later, towards the end of September 1996, Colonel Eugene de Kock, a former South African police officer, gave evidence to the Supreme Court in Pretoria alleging that Palme had been shot and killed in 1986 because he "strongly opposed the apartheid regime and Sweden made substantial contributions to the ANC".
P2 - Three days before Olof Palme's death, Licio Gelli, member of P2 freemasonic lodge, had sent a telegram to Philip Guarino, at that time an important member of the Republican circle around George H.W. Bush. This telegram said: "Tell our friend that the Swedish palm will be felled."
The people behind Iran-Contra - According to an interview of Gene "Chip" Tatum by, Palme was assassinated because he refused an arms-trade. The arms trade would have been part of the agreement reached during the October surprise conspiracy.
The Pinochet Dictatorship (DINA) - DINA agent Michael Townley, who has been convicted for Chilean former minister Orlando Letelier's assassination, was in Stockholm a week before Olof Palme's murder.
Or was it someone else?
http://en.wikipedia.org/wiki/Olof_Palme_assassination#Theories