Charles Cullen might be the world's most prolific serial killer. He worked as a nurse in various US hospitals during the 90s and early 2000s, killing patients with overdoses of heart medication and insulin. Cullen's colleague, Amy Loughren, explains how she got him to confess while wearing a wire.

What It Was Like TikTok

What It Was Like Youtube

A Superreal production

Hosted on Acast. See acast.com/privacy for more information.