This undated photo provided by the Salt Lake County Sheriff's Office shows Chelsea Watrous Cook. Police say Cook, a Utah high school teacher, shot and killed her ex-husband's girlfriend while the ...

The Utah teacher accused of fatally shooting her ex-husband’s girlfriend in front of her own twin daughters allegedly snuck into the apartment where she’d commit murder after luring her ex outside ...

A Utah teacher shot and killed her ex-husband's girlfriend in front of the former couple's children, police said in jail documents released Monday. Chelsea Watrous Cook, 32, came to her former husband ...

Despite spending her working days teaching secondary school students about health and wellbeing, Chelsea Watrous Cook was certainly not looking after her own mental health. Her colleagues at Skybridge ...