What if the most dangerous person in the room wasn’t the one you’d ever suspect? History has a way of overlooking women, and for decades, even the FBI refused to acknowledge they could be serial killers at all.

This episode of Haunts & Hollows: True Tales of the Gothic South aims to set the record straight.

In this second installment of our Deadly Dames series, we round out our list of twelve lethal women with six more cases that are equal parts fascinating and disturbing. Along the way, we unpack why female killers are so much harder to catch (Need a hint? They tend to know their victims, favor undetectable methods like poison, and often operate in plain sight as trusted caregivers).

The first trio killed not for money, but out of psychological compulsion: a veterans’ hospital nursing assistant who fatally injected elderly patients, a mentally ill nurse who kept a handwritten list of her victims, and a troubled babysitter who suffocated multiple children in her care.

The second trio were coldly profit-driven: Charleston’s legendary 18th-century innkeeper who allegedly poisoned travelers, a churchgoing grandmother who arsenic-poisoned five family members for insurance payouts, and the infamous “Giggling Granny,” Nannie Doss, who killed eleven people across three decades, including four husbands, before anyone thought to look her way.