Suspect arrested for sexually assaulting sleeping woman

Serena Bettis

A Fort Collins woman contacted police at 2:07 a.m. Sept. 7 and reported that an unknown man broke into her residence in the 600-block of Balsam Lane and sexually assaulted her, according to a Sept. 16 press release published by Fort Collins Police Services. 

A headshot of a recently arrested man.
22-year-old Tanner Cook was arrested for burglary and sexual assault Sept. 7, 2019. (Photo Courtesy of Larimer County Sheriff’s Office)

The suspect, 22-year-old Tanner Cook, was located by responding Fort Collins police officers who arrested him on charges of burglary and sexual assault, both of which are Class 3 felonies.


Cook is being held in the Larimer County Jail. 

“Sexual assault is a serious crime that impacts our community and is often under-reported,” said Criminal Impact Unit Sergeant Scott Crumbaker. “There are numerous resources and services that are available to victims of these types of crimes. We encourage victims to report to police as soon as possible to aid in the arrest and prosecution of dangerous criminals.”

Anyone with information pertaining to this incident or other incidents involving Cook should contact Detective Mike Harres immediately at 970-221-6543. Additionally, anyone who wishes to contribute information anonymously can contact Crime Stoppers of Larimer County at 970-221-6868 or visit

Serena Bettis can be reached at or on Twitter @serenaroseb