A former nurse turned FBI profiler interviewed dozens of killers. She explains what the most dangerous ones have in common.

Fuente: Business Insider

Candice DeLong speaks onstage during A True Crime Experience Live at Gotham Hall in 2023. Ilya S. Savenok/Getty Images for WonderyCandice DeLong shifted from psychiatric nursing to a 20-year career in the FBI profiling killers.