Posted: Jan 03, 2021 10:55 AM MT | Last Updated: January 4 Sgt. Andrew Harnett, 37, was killed while on duty on New Year's Eve after a driver fled the scene of a traffic stop he was conducting. He leaves behind a grief-stricken family, including his partner, Chelsea, who is pregnant with the couple's first child.(Calgary Police Service) The Calgary police officer killed in the line of duty leaves behind his wife, Chelsea, who is pregnant with the couple's first child Sgt. Andrew Harnett, 37, died in hospital of injuries sustained during a traffic stop he conducted New Year's Eve. The driver of one of the vehicles Harnett stopped shortly before 11 p.m. tried to flee, taking off in an SUV and striking and dragging the officer.