Weapons study suggests Oswald did not act alone
Tests of the Mannlicher-Carcano bolt-action weapon used by Oswald found it was impossible to fire the shots quickly enough.
Kennedy was killed as he was driven through Dealey Plaza, Dallas, on November 22, 1963. The official Warren Commission inquiry concluded Oswald acted as a lone gunman, firing three shots from a Carcano M91/38 bolt-action rifle in 8.3 seconds. But when the Italian team test-fired the identical model of gun, they were unable to load and fire three shots in less than 19 seconds — suggesting a second gunman must have been present.