According to Michael Collins Piper in Final Judgment: The Missing Link in the JFK Assassination Controversy, Israeli Prime Minister David Ben-Gurion orchestrated the assassination after learning that Kennedy planned to keep Israel from obtaining nuclear weapons.[487] Piper said that the assassination “was a joint enterprise conducted on the highest levels of the American CIA, in collaboration with organized crime – and most specifically, with direct and profound involvement by the Israeli intelligence service, the Mossad.”[488] The theory alleges involvement of Meyer Lansky and the Anti-Defamation League.[487] In 2004, Mordechai Vanunu stated that the assassination was Israel’s response to “pressure [Kennedy] exerted on … Ben-Gurion, to shed light on Dimona’s nuclear reactor in Israel”.[489]
Michael Collins Piper had a suspicious heart attack (age 54) and no autopsy was conducted
https://en.wikipedia.org/wiki/Michael_Collins_Piper
In a speech before the United Nations General Assembly in 2009, Libyan leader Muammar Gaddafi also alleged that Kennedy was killed for wanting to investigate Dimona.[490]JFK was engaged in a bitter secret conflict with Israel over U.S. East policy and that Israel’s prime minister resigned in disgust, saying JFK’s stance threatened Israel’s very survival.
https://www.aljazeera.com/news/2009/9/24/gaddafi-slams-un-security-council
That JFK’s successor, Lyndon Johnson, immediately reversed America’s policy toward Israel.
Lyndon Johnson also hid the Israeli attack on the American Ship USS Liberty in 1967.
https://www.amazon.com/Final-Judgment-Missing-Assassination-Conspiracy-ebook/dp/B0722R7K46
https://www.amazon.com/JFK-Unspeakable-Why-Died-Matters-ebook/dp/B005Q07DKY
Both books are also available as free pdf contact editor