Kennedy was taken to Parkland Hospital for emergency medical treatment, where he was pronounced dead 30 minutes later. He was 46 years old and had been in office for 1,036 days. Lee Harvey Oswald, an order filler at the Texas School Book Depository from which the shots were fired, was arrested for the murder of police officer J. D. Tippit and was subsequently charged with Kennedy's assassination. He denied shooting anyone, claiming he was a , and was shot dead by Jack Ruby on November 24, before he could be prosecuted. Ruby was arrested and convicted for the murder of Oswald. Ruby successfully appealed his conviction and death sentence but became ill and died of cancer on January 3, 1967, while the date for his new trial was being set.