A Former Teacher Admitted She Killed Her Ex-Husband’s Girlfriend

Feb 21, 2020, 1:13 PM | Updated: 1:16 pm

SALT LAKE CITY, Utah – During a court hearing Friday morning, a former teacher admitted she killed her ex-husband’s girlfriend in front of her two children.

As part of a plea bargain, Chelsea Watrous Cook, 33, will no longer face the death penalty.

In November 2018, police said Cook went to her ex-husband’s apartment uninvited and shot and killed Lisa Williams, 26.

According to court documents, Cook was bringing cold medicine to one of her children who was staying with her ex-husband on the night of the shooting. While at the apartment, she locked herself in the bathroom after being asked to leave. She the reportedly left the bathroom, took a gun from her coat, and fired at her ex’s girlfriend.

Cook was a high school teacher for the Alpine School District. She was fired from her position at Skyridge High School in Lehi after her arrest. The school district then discovered she had previous charges for assault and domestic violence.

A sentencing hearing has been scheduled for May.


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A Former Teacher Admitted She Killed Her Ex-Husband’s Girlfriend