Apple TV+’s Black Bird depicts the grim and strange story of Larry Hall (Paul Walter Hauser), and for the most part, is an honest retelling of his life. Premiering on Apple TV+ in July 2022 and based on the 2010 autobiographical novel In with the Devil: a Fallen Hero, a Serial Killer, and a Dangerous Bargain for Redemption by James Keene, Black Bird is a recounting of the real lie sting operation the FBI set up to ensure the convicted serial killer, Larry Hall, never had the chance to appeal his life sentence.
https://screenrant.com/larry-hall-black-bird-true-story-show-leaves-out-serial-killer/