CSI
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Minor Character: Las Vegas
Name Catherine "Katy" Hill
Gender Female
Family Bo Mattison (father; deceased)
Unnamed mother (deceased)
City Las Vegas
Occupation Magician's assistant
Serial killer (originally)
Spree Killer (later)
Status Deceased
Portrayed By Natalie Hall
First Appearance Last Woman Standing

"Last woman standing. How does it feel?!"

Katy Hill was a serial-turned-spree killer who appeared in season thirteen of CSI: Crime Scene Investigation.

History

Katy's father was Bo Mattison, a high-stakes poker player who by 1997 was almost broke. That year he took part in the Palermo Poker Classic and played against three other poker experts, Ed Ficelli, Trent Alridge and Peter Coe. What he didn't know was that his opponents, led by Ficelli, and the card dealer were all in collusion to help each other beat him. Peter Coe finished him off. A week after losing, Bo killed himself in a park. Katy went on with her life until shortly after her mother died, when she found letters written by her father revealing that he figured out that he had been cheated. She planned to take revenge on the people behind the scam and took a job as an assistant for a stage magician named James Nefarro, a.k.a. "Dr. Jimmy", who had paid Peter Coe's entrance fee into the tournament.

Modus Operandi

"You want me to show you my cards?"

Katy targeted the people who had scammed her father. She killed them in widely-varying ways, each representing a card of the last five dealt cards on which her father lost.

Known Victims

  • November 2012: Ed Ficelli (the ringleader; killed with a heroin overdose spiked with trifolium clovers; represented "four of clubs")
  • February 2013:
    • Trent Alridge (one of the players; asphyxiated by stuffing seven chicken hearts down his throat; represented "seven of hearts")
    • Peter Coe (one of the players; slashed his throat by throwing a card at it; represented "ace of spades")
    • Ava Rendell (born "Ava Heidbredder"; daughter of the dealer in the game; decapitated with a medieval warhammer; represented "king of diamonds")
    • James "Dr. Jimmy" Nefarro (accomplice in the scam; attempted; represented "king of spades")
    • Morgan Brody (attempted to shoot)
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