Charmed By the Devil
9pm, Sky Crime
When 23-year-old Doug Gretzler was imprisoned in 1973 for murdering 17 people across 20 days – including two children – in the US, with his accomplice Willie Steelman, the only person he talked to was the journalist Laura Greenberg, who recorded their conversations. These took place across an astonishing 350 prison visits and 500 hours of conversation. She opens this documentary, which questions the murderers’ motives. Hollie Richardson
