Why did malcolm x leave the nation of islam a result of the freedom summer?

Differences with the nation of Islam leader and ideological differences
while he had revered the leader, Elijah, very much, strained relations begun after his insidious statement about JFK assassination. Elijah censured him for speaking on behalf of the organization he also exposed the adulterous behavior of the leader. He formed his own organization in 1964,traveled to Mecca, and on return his message was also sharply different,focusing on integration,rather than separation. He was soon to be assassinated by members of the nation of Islam.