A La Crosse County sheriff's deputy was charged with negligent homicide after she killed a Holmen teenager in July while driving at a high speed en route to a bar fight, the state Department of Justice announced Wednesday.

Deputy Trisha Stratman was driving north on Highway 35, responding to a report of a large bar fight in Holmen shortly after 1 a.m. July 18, when her squad collided with a car being driven by Brandon Jennings, 16, of Onalaska.

Jennings, a Holmen High School student, died after being thrown from his vehicle. He was not wearing a seatbelt, according to the state patrol.

Stratman entered the intersection on a red light and struck Jennings' vehicle at 90.6 mph, according to the complaint. Her speed was 106 mph 1.6 seconds before the crash.

Stratman will appear Feb. 4 in La Crosse County Circuit Court.