Criminal Minds Wiki

She's going to die anyway, right?
Kelly to Polly

Kelly Seymour was an abduction victim and attempted murderer under duress who appeared in the Season Two episode of Criminal Minds, "North Mammon".


Little is known about Kelly's personal life, her brother is a part of the North Mammon High School varsity football team that has qualified to the state championship game. She was on the school's varsity soccer team with her friends Brooke Chambers and Polly Homefeldt. Her parents hinted that her feelings were not as important compared to her brother due to the city's obsession with the school's football team. She was having a sleepover with Brooke and Polly at the former's house when they were abducted by Marcus Younger.

North Mammon[]

In the episode, Marcus locked Kelly and her friends in an underground cellar and tells them that two will leave alive while one will die, and the choice of who should die is theirs. Kelly, increasingly determined to get her freedom back no matter what the cost, convinces Polly to choose Brooke to be killed, arguing that she is already dying because of a cough that was getting worse and that upon being released, they could contact outside help, who may be able to rescue Brooke in time (unaware that Marcus was planning on having them kill her themselves). When Kelly and Polly announce that Brooke will be the one to die, Marcus drops two hammers into the basement, and they are horrified at what they have to do. Though Polly waivers in hesitation, Kelly remains adamant and tries to convince Polly, citing the Uruguayan Air Force Flight 571. Unbeknownst to both of them, Brooke has grabbed one of the hammers and is sneaking up behind Kelly. Brooke swings the hammer, striking Kelly in the back of the head. Kelly, seemingly aware of what just happened, has a shocked look on her face, staring at Polly before she collapses and dies.

Modus Operandi[]

When Kelly attempted to kill Brooke, she planned on bludgeoning her with a hammer provided to her by Marcus. The killing would have been done with the assistance of Polly, who was also provided a hammer by Marcus.

Known Victims[]