Jealous mum shoots ex-husband's new girlfriend dead

Chelsea and Lisa [Photo: Courtesy]

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 High School in Lehi, Utah, had no idea what the popular teacher was up to and they definitely wouldn’t have approved of her behaviour on, or off, school grounds.

Yoga teacher Chelsea, 33, had been married to Travis Cook until their divorce in January 2018. They had three-year-old twins together and the young children should have been her priority - but Cook’s attention was obsessively focused on Travis’s new girlfriend. Travis had started dating bank teller Lisa Vilate Williams. Friends described Lisa, 26, as gentle, loving and generous. She had moved to the area initially to look after a sick relative and that was typical of her caring nature.