Serial killers hold a strange fascination for many people. The reason for this is difficult to ascertain, but why anyone would become a serial killer in the first place is even more difficult to ...

Dr. Rachel Toles always feels like she’s being drawn to the dark side. “It feels like it was kind of a weird, destined thing that I was supposed to be working in this field,” she told the ...

What drives serial killers to commit murder repeatedly? After many years of research, the Behavioral Science Unit of the FBI has concluded that serial killers program themselves in childhood to become ...

Gilgo Beach serial killer Rex Heuermann will team with FBI in ‘Mindhunter’-style deal digging into the mind’s dark side ...

This show looks at behavior over time. It’s about how warning signs get minimized, how escalation unfolds in real life, and what we can learn when we stop relying on myths and start tracking patterns.

These projects reveal the evil lurking underneath the guises of killers who were so often hiding in plain sight.