48 hours before being shot by Mark Chapman, former Beatles member John Lennon recorded an interview with Andy Peebles of BBC Radio One, from his home in New York. The tapes were made available by the BBC in early 1981 but I believe are now out of print.
Throughout 1981, there was constant chatter – particularly in the music press – over allegations that the FBI had been complicit in the killing of John Lennon. Obviously this was strenuously denied by the forces of law and order in the US. That’s not to say that Lennon had not severely irritated the political right in the US and that he didn’t have a sizable FBI file, because he did. His espousal of various causes including Irish Republicanism was not likely to endear him to certain people.
The issue of secret service involvement in Lennon’s death still resurfaces and this is an article from the Daily Mail regarding accusations that the CIA was involved. Control/click: http://www.dailymail.co.uk/news/article-1335479/Was-John-Lennons-murderer-Mark-Chapman-CIA-hitman-Thirty-years-theres-extraordinary-new-theory.html
I do have a lot of stuff on the FBI’s alleged involvement – contact me if you want me to post old articles on this and I will oblige.