Brent Bloomquist

Brent Bloomquist was arrested on July 1, 2020, for the 2002 sex assault of a 62-year-old woman. She had been walking home on the night of May 31, 2002, in Arvada, Colorado, when she was grabbed from behind by an unknown assailant.

A DNA profile was obtained from semen found at the crime scene, and a ‘John Doe Warrant’ was issued for the suspect. The FGG investigation was conducted by United Data Connect.

The suspect’s DNA has matched another cold case rapes in the area, but since a DNA warrant was not issued in those cases, the statute of limitations may have run out.

On January 11, 2021, Bloomquist pled guilty to the charges in Jefferson County Court. In April of 2021, he was sentenced to 4 years in prison.


Arvada Press. “Man Arrested in Arvada Case from 2002.” Arvada Press, July 7, 2020. Accessed December 11, 2020.,312016.

Butzer, Stephanie. “Man Arrested 18 Years After Alleged Sexual Assault in Arvada.” The Denver Channel, July 2, 2020. Accessed December 11, 2020.

Campbell-Hicks, Jennifer. “Man Pleads Guilty in 2002 Arvada Sexual Assault.” NBC News 9, January 11, 2021. Accessed December 29, 2021.

Oravetz, Janet. “Man Sentenced to 4 Years Following Arrest in 2002 Sex Assault.” NBC News 9, April 14, 2021. Accessed December 29, 2021.

Takahara, Deborah. “Nearly 20 Years After Sexual Assault, Arvada Police ID and Arrest Suspect.” Fox 31 News Denver, July 1, 2020. Accessed December 11, 2020.


First Name Brent
Last Name Bloomquist
Other Names
Victims 1 (Details)
IGG Started nd
Case Cleared 2020-07-01
IGG Org United Data Connect


Case ID Name Age Case Opened Location Investigating Org Most Serious Charge Disposition Court
1390 n/a Jane Doe 62 2002-05-31 Arvada, CO Arvada PD; CO BI All sexual offenses, including rape, sexual assault, and child molestation Guilty plea entered by defendant Jefferson CO DIST CT

Last updated: February 9, 2024

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Case data and narrative licensed under CC BY 4.0: Dowdeswell, Tracey (2023), “Forensic Genetic Genealogy Project v. 2022”, Mendeley Data, V1, doi: 10.17632/jcycgvhm96.1. All other content, including photos, have been added.