"Martin Luther King regularly had (paying or free) extramarital sex while he was on long road trips (according even to his closest confidant Ralph Abernathy and other friends, not just the FBI). What's more, he did these things not just in some remote past prior to being the nation's chief civil rights agent but (again, according to Abernathy) committed such immorality right up to the last night of his life (King tragically died at the age of 39) when he had sexual encounters not with one woman or even two but with three women (at different times). The third woman, upset with King's cheating on her with women other than his wife, got into such a heated argument with King that King "lost his temper and knocked her across the bed." So add assault to the immorality. Distinguished historian of MLK, Taylor Branch, reports on FBI wiretapping of King’s hotel room in January 1964, in which King was recorded as shouting while having adulterous intercourse, “I’m f*****g for God! I’m not a negro tonight!”
There are also credible reports from multiple sources of King on more than occasion arranging or permitting drunken orgies at his workshops (and using funds donated to the civil rights cause), in which prostitutes were paid to put on a sex show. According to one account, "when one of the females shied away from engaging in an unnatural act [presumably, lesbian sex], King ... discussed how she was to be taught and initiated in this respect.” King may even have fathered an illegitimate child through an adulterous affair with the wife of a prominent Black dentist in Los Angeles."