Antonia Slade

Antonia Slade, a.k.a. "The Runaway Killer", is a now-incarcerated female serial killer who appeared in Season Eleven of Criminal Minds.

Background
Antonia was an only child born at a farm in Kentucky. When she was fourteen, she was impregnated by her boyfriend, who was a year older than her. Her father, a strict minister, disciplined her severely and forced her to give birth to the baby, while he killed her boyfriend. Antonia then presumably gave the child away. As an adult, she moved to Virginia and worked as a therapist for Social Services. Developing a desire to project a fantasy in which she would kill herself over and over again, she began serial killing in Virginia, targeting runaways who were lured over to her house after they contacted a hotline she set up. In her crimes, Antonia was assisted by a submissive accountant named Phil Garmon, who cut off all of his social ties after becoming affiliated with her.

At some point, a would-be victim, a boy named Hector Ramon, escaped her clutches, though she managed to kill Hector's companion, who was her ninth and last victim. Afterwards, Antonia was identified and tracked down by the BAU, which was led by Jason Gideon at the time, and arrested, while Phil committed suicide. She was convicted of the murders and sentenced to life imprisonment, and as a result, she was forced to terminate her therapy. In order to gain respect, Antonia put up a facade, portraying herself as a narcissist who craved constant control over a situation. During her incarceration, she earned the trust and respect of her fellow inmates and even some corrections officers. At some point, Antonia got into contact with Claude Barlow, one of her old patients in therapy, who developed a severe fixation on her. Taking advantage of his instability, Antonia manipulated him into abducting boys and holding them captive for her.

The Storm
She will reappear in this episode.

Modus Operandi
During her original crimes with Phil Garmon, Antonia targeted runaways of both genders, who she would lure in using a hotline she set up for potential victims. Once they were brought to her house at her request, she would provide them with shelter and initially treat them with kindness. However, as time passed, she would become abusive towards them. Eventually, Antonia would kill them with single gunshots to the back of the head.

Known Victims

 * Nine unnamed victims
 * Hector Ramon
 * Adam Morrissey and Jimmy Bennett

Appearances

 * Season Eleven
 * "Devil's Backbone"
 * "The Storm"