The Minds of Billy Milligan by Daniel Keyes

Billy Milligan was a man out of control of his actions, tortured by twenty-four unique personas struggling for dominance over his body—a war that culminated when he awakened in jail, arrested for the kidnapping and rape of three women. Billy was acquitted of his crimes in a landmark trial due to insanity caused by multiple personalities—the first such court ruling in history—bringing to light the most amazing and terrible instance of multiple personalities ever recorded.

Billy Milligan is home to twenty-four individuals. Philip, a petty criminal; Kevin, a drug dealer who masterminded a drugstore robbery; April, whose only ambition was to kill Billy's stepfather; Adalana, the shy, lonely, affection-starved lesbian who "used" Billy's body in the rapes that led to his arrest; David, the eight-year-old "keeper of pain"; and all of the others, including men, women, several children, both boys and girls, and In this often frightening true narrative, you will meet each of them. And you will be taken profoundly into this wounded young man's head and his shattered, terrible universe.

Detailed information:
Author: Daniel Keyes
Link to read: goodreads.com/book/show/1391817.The_Minds_of_Billy_Milligan