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
Assassination of John F. Kennedy the Kennedy assassination and that killing Oswald would spare "... Mrs. Kennedy the discomfiture of coming back to trial." An Italian Carcano M91/38 bolt-action rifle (see 6.5×52mm Mannlicher–Carcano cartridge) was found on the 6th floor of the Texas School Book Depository by Deputy Constable Seymour Weitzman and Deputy Sheriff Eugene Boone soon after the assassination of President Kennedy. The recovery was filmed by Tom Alyea of WFAA-TV. This footage shows the rifle to be a Carcano, and it was later verified by photographic analysis commissioned by the HSCA that the rifle filmed was the same one later identified as the