Final answer:
Malcolm X suspected the Nation of Islam wanted to kill him due to his separation from the group and shift in ideology. The FBI was tracking Malcolm and may have known about the assassination plot. He was assassinated by Nation members in 1965.
Step-by-step explanation:
At the end of his life, Malcolm X believed that members of the Nation of Islam, the organization from which he had distanced himself, were trying to kill him. Relations between Malcolm X and his former teacher, Elijah Muhammad, had grown increasingly volatile. This tension, coupled with Malcolm X's shift in ideology towards endorsing racial integration, made him a target within the organization. Additionally, there were indications that the FBI was aware of the assassination plot, as they had informants within the Nation of Islam and were tracking the activities of both Malcolm and his eventual assassins. On February 21, 1965, Malcolm X's forebodings were realized when he was assassinated by members of the Nation of Islam in Harlem.