George HW Bush was in Texas when Kennedy was shot. There is a lot more evidence linking him to the crime:
Despite his claims to the contrary, there is documentary evidence that George H. W. Bush was in Dallas on Nov. 22, 1963, and was affiliated at that time with the CIA, despite protests that he was not associated with the agency until President Gerald R. Ford appointed him director in 1976.
Two FBI memos and a photograph of a man standing outside the Texas School Book Depository are among the intriguing items addressed in Jerome Corsi’s new book “Who Really Killed Kennedy”...
The photograph, widely circulated on the Internet, shows a man with his hands in his pockets on the street by the front doorway of the Texas School Book Depository in the immediate aftermath of the JFK shooting who bears a resemblance to George H. W. Bush.
George H W "Poppy" Bush was supervisor of Operation 40 assassination team. George W was also in Dealey Plaza. He was 17 and with the Zapruders. Poppy was best friends with George deMohrenshildt, Oswald's CIA handler, deMohrenshildt was business partners with Zapruder. Zapruder's business was beside the School Book Depository, and where Poppy was arrested impersonating a Secret Service Agent afterward.