9 "Criminal Minds" Episodes That Are Based on Very Creepy True Stories

The season five finale of "Criminal Minds" pulled inspiration from another infamous serial-killer case: the Night Stalker. Richard Ramirez gained notoriety in the 1980s for his shocking and brutal crime spree terrorizing California, often under cover of night. Much like in the real case, the BAU struggle to understand their fictional killer's motivations and apparently remorseless violence. Ramirez was eventually caught and convicted, dying from lymphoma in 2013 while on death row.