Answer:
some think he was involved with the mafia some think that the vice president killed him and some think becuase the Us and Cuba did not like each and other at the time the Fadel castero sent someone to kill him
Step-by-step explanation:
lee Harvey Oswald killed him some think he was just crazy but they aressted Oswald and he was killed just a little bit after after a man named Jack Ruby shot Oswald