成为邪恶：旧时西部连环杀手 Becoming Evil: Serial Killers of the Old West (2021)

The Old West was a time of lawlessness, when serial killers stalked the mountains, prairies and deserts of North America. Men like Billy the Kid, Jesse James and the Kentucky cannibal left a trail of victims strewn across the landscape. The ruthlessness of their murders will shock in this feature-length documentary goes back into history to uncover the origins of evil during the Old West.