Robert F. Kennedy Jr. pulled up to the massive Richard J. Donovan Correctional Center, a California state prison complex. Kennedy was there to visit Sirhan B. Sirhan, the man convicted of killing his father, Sen. Robert F. Kennedy, nearly 50 years ago. It was the culmination of months of research by Kennedy into the assassination. He would not discuss the specifics of their conversation. But when it was over, Kennedy had joined those who believe there was a second gunman, and that it was not Sirhan who killed his father. He now supports the call for a re-investigation of the assassination led by Paul Schrade, who also was shot in the head as he walked behind Kennedy in the pantry of the Ambassador Hotel ... but survived. Though Sirhan admitted at his trial in 1969 that he shot Kennedy, he claimed from the start that he had no memory of doing so. And midway through Sirhan's trial, prosecutors provided his lawyers with an autopsy report that launched five decades of controversy: Kennedy was shot four times at point-blank range from behind, including the fatal shot behind his ear. But Sirhan, a 24-year-old Palestinian immigrant, was standing in front of him. Was there a second gunman? The debate rages to this day. Sirhan's appeals have been rejected ... as recently as 2016, even with the courts considering new evidence that has emerged over the years that as many as 13 shots were fired - Sirhan's gun held only eight bullets - and that Sirhan may have been subjected to coercive hypnosis, a real life Manchurian candidate."