On August 29th, the Brighton Police Department discovered 32-year-old Keeley Koff, deceased in an abandoned vehicle. 

Preliminary investigation indicated Keeley may have been associated with 50-year-old James (Jaime) Benavidez. Benavidez was arrested on August 28th on unrelated charges involving an attempted robbery, subsequent pursuit, and attempted homicide of several police officers.  

After further investigation, James Benavidez has also been charged with the homicide of Keeley Koff. The case will be filed with the 17th Judicial District Attorney’s Office, and Benavidez has been booked into the Adams County Jail on the following charges:  

18-4-409 1ST DEG MOTOR VEHICLE THEFT 

18-3-102 MURDER IN THE 1ST DEG - WILLFUL KILL - GUN 

18-3.5-106(2)(A) UNLAWFUL TERMINATION OF PREGNANCY 

18-12-108(1) POSSESS WEAPON BY PREVIOUS OFFENDER 

18-6-801(7) HABITUAL DOMESTIC VIOLENCE OFFENDER 

Under Colorado laws, the arrest and filing of a criminal charge is merely a formal accusation that an individual committed a crime. A defendant is presumed innocent until and unless proven guilty. 

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News Release #25-13, August 29th, 2025

The Brighton Police Department is investigating a homicide that was discovered on August 29th, just after 9:15 a.m.

Officers responded to the 200 block of North 6th Ave in Brighton, CO, to a report of an abandoned vehicle. Upon arrival, they located the vehicle and found a deceased woman, approximately 30 years old, with an apparent gunshot wound.  

There is no threat to the public as a person of interest has been identified and is currently in custody on unrelated charges. The woman’s identity is being withheld pending notification of next of kin. The Adams County Coroner’s Office will release her name at a later time.  

This investigation remains ongoing and is still in the very early stages; no additional details will be released at this time. Anyone who witnessed this incident or has further information is requested to call our tip line at 303-655-8740.  

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