On 21 May 1975, terrorists stopped the car carrying Colonel Shaffer and Lieutenant Colonel John H Turner. One vehicle blocked the car from the front while another vehicle rammed it from behind. Hours after the attack, American officials received an anonymous call, which said the assassinations were retaliation for "Government atrocities against political prisoners". (according to another source it said "Marxist guerrillas" were attributed responsibility by the Iranian authorities. Vahid Afrakhteh was accused and charged by an Iranian army tribunal, and was sentenced to death by firing squad. Afrakhteh (one of the founders of Peykar) confessed that he had led the cell that gunned down Col. Paul Shaffer and Lt. Col. Jack Turner, also saying that his immediate superiors at the time had close links with the Marxist Habash group. According to some sources, the
People's Mujahedin of Iran (MEK) was responsible for the assassination. According to Col Wes Martin (U.S. army), there often is no distinguishment between acts committed by the
MEK and the Marxist PMOI [Peykar], and despite the Shah's police arresting "two people for the killings of Shaffer and Turner and stated they were part of the "Islamic Marxist group", and a member of the Marxist PMOI [Peykar] would later claim to have killed Hawkins, the blame remains on the PMOI [MEK]." According to
The Bulletin, a newspaper of
Bend, Oregon, "a group identifying itself as the Revolutionary Republican Movement of the Armed Forces of Iran" also claimed responsibility. ==Aftermath==