The House Assassinations Committee may have been right after all: There was a shot from the grassy knoll.
That was the key finding of the congressional investigation that concluded 22 years ago that President John F. Kennedy's murder in Dallas in 1963 was "probably . . . the result of a conspiracy." A shot from the grassy knoll meant that two gunmen must have fired at the president within a split-second sequence. Lee Harvey Oswald, accused of firing three shots at Kennedy from a perch at the Texas School Book Depository, could not have been in two places at once.
A special panel of the National Academy of Sciences subsequently disputed the evidence of a fourth shot, contained on a police dictabelt of the sounds in Dealey Plaza that day. The panel insisted it was simply random noise, perhaps static, recorded about a minute after the shooting while Kennedy's motorcade was en route to Parkland Hospital.
A new, peer-reviewed article in Science and Justice, a quarterly publication of Britain's Forensic Science Society, says the NAS panel's study was seriously flawed. It says the panel failed to take into account the words of a Dallas patrolman that show the gunshot-like noises occurred "at the exact instant that John F. Kennedy was assassinated."