from telegraph: Lee Harvey Oswald could not have acted alone in assassinating President John F Kennedy, according to a new study by Italian weapons experts of the type of rifle Oswald used in the shootings.
In fresh tests of the Mannlicher-Carcano bolt-action weapon, supervised by the Italian army, it was found to be impossible for even an accomplished marksman to fire the shots quickly enough.
The findings will fuel continuing theories that Oswald was part of a larger conspiracy to murder the 35th American president on 22 November 1963.
The official Warren Commission inquiry into the shooting concluded the following year that Oswald was a lone gunman who fired three shots with 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 that a second gunman must have been present in Dealey Plaza, central Dallas, that day.
Two of the bullets hit Kennedy, with the first - the so called "magic bullet", ridiculed by conspiracy theorists - also wounding the governor of Texas, John B Connally, after it had struck the president...
Nearly seven out of 10 Americans believe that Kennedy was murdered as a result of a plot. Depending on which theory they back, the participants supposedly included any or all of the CIA, the Mafia, the Cubans, the FBI chief J Edgar Hoover, the military-industrial complex and Vice-President Lyndon B Johnson.
It is the second challenge in two months to the view of the Warren Commission that Oswald acted alone. In May, researchers at Texas A&M University argued that the ballistics evidence used to rule out a second gunman had been misinterpreted.
The findings will be a frustration to Vincent Bugliosi, the author of a 1,600-page book, also published in May, which claimed to put to rest all the conspiracy theories of the past 44 years.