J. D. Tippit answer questions surrounding the events. President Johnson also hoped to quell rumors that arose after Oswald was shot by Jack Ruby that the assassination and subsequent shootings were part of a conspiracy. The committee, known as the Warren Commission (named for the commission chairman, Chief Justice Earl Warren), spent ten months investigating the murders and interviewing witnesses. On September 24, 1964, the Warren Commission released an 888-page report that concluded there was no evidence of a conspiracy and Lee Harvey Oswald acted alone in killing President Kennedy and Officer Tippit. The report also concluded that Jack Ruby acted alone in
National Commission on the Disappearance of Persons National Commission on the Disappearance of Persons National Commission on the Disappearance of Persons (Spanish: , CONADEP) was an Argentine organization created by President Raúl Alfonsín on 15 December 1983, shortly after his inauguration, to investigate the fate of the "desaparecidos" (victims of forced disappearance) and other human rights violations (see: Dirty War) performed during the military dictatorship known as the National Reorganization Process between 1976 and 1983. The research of the investigation commission was documented in the "Nunca Más" (Never Again) report, which was a complete summary published as an official report in Spanish, and delivered to Alfonsín on