From the BBC piece linked above:
The report is the result of a three-year investigation by filmmaker Shane O’Sullivan. He reveals new video and photographs showing three senior CIA operatives at the hotel.
Three of these men have been positively identified as senior officers who worked together in 1963 at JMWAVE, the CIA’s Miami base for its Secret War on Castro.
David Morales was Chief of Operations and once told friends:
“I was in Dallas when we got the son of a bitch and I was in Los Angeles when we got the little bastard.”
Gordon Campbell was Chief of Maritime Operations and George Joannides was Chief of Psychological Warfare Operations.
Joannides was called out of retirement in 1978 to act as the CIA liaison to the Congressional investigation into the JFK assassination. Now, we see him at the Ambassador Hotel the night a second Kennedy is assassinated.
Larry Teeter, Sirhan Sirhan’s lawyer up until his own death in 2005, lectures on the case.