I mean, I think we already knew this but bears repeating
"The assassination of John F Kennedy in 1963 was an inside job, according to a deathbed confession given to the veteran film director Oliver Stone.
After making his acclaimed film JFK - which was sympathetic to conspiracy theories about the murder - Stone was contacted by a man claiming to have been a former member of the presidential security team.
Dying of cancer, the man wanted to share a secret that he had until then only told his son – that 'somebody from his own team… had fired on the President'."