I got a little carried away responding to some bot who said the CIA wants people to think they killed Kennedy so everyone thinks they're omnipotent and all-powerful, so I thought I'd turn my comment into a post here. 👍

Elements of the CIA (James J. Angleton), the Mafia (Meyer lansky and the kosher nostra), and the Mossad collaborated to kill Kennedy. The OSS/CIA had been working with the Mafia since WW2 with Operation Underworld, and continued working with them to carry out targeted assassinations for a couple decades. During the Church Committee, mobster Johnny roselli testified twice about the mob's relationship with the CIA and targeted assassinations, and turned up decomposed in a steel drum before he could testify again. Sam Giancana was also gunned down shortly before he was scheduled to testify. And of course the kosher nostra had been working with the state of israel since before its creation (by jewish terrorists)

The day before the assassination an "anti-Castro Cuban" told an FBI/S.S. informant, "we now have plenty of money -- our new backers are *ews -- as soon as 'we' or ('they') take care of Kennedy....". Another source for this is page 41 of Coup D'état In America by A.J. Weberman and Michael Canfield.

The only reason the CIA would want people to think it's them is to take heat off the main culprit, israel, the kings of targeted assassinations, with over 2,700 targeted assassinations since its founding. Israel wanted Kennedy dead because he was trying to prevent them from expanding their illegal nuclear program at Dimona (using the nuclear material they stole from the United States), as well as the Kennedy brothers push to force the AZC to register as a foreign agent.

If you'd like more information, one of the best resources is Final Judgement by Michael Collins Piper. Laurent Guyenot's documentary Israel and the Assassinations of The Kennedy brothers is pretty good as well, and largely based off Piper's research. And somewhat related, Whitney Webb put out a great article a few years ago about the connection between the intelligence agencies and the jewish criminal underworld.