Jason Groshart

Jason Groshart, 49, was arrested on October 4, 2022 for a March 30, 2004 home invasion rape in Denver, Colorado.

There is currently no information on who conducted the FGG investigation. Police have not stated if surreptitious sampling was used, only that his DNA was obtained, and that a direct comparison was made with the suspect DNA collected from the crime scene.

The investigation was conducted by the Denver PD in cooperation with the FBI, the Colorado Bureau of Investigation, and the Denver Integrated Cold Case Project of the Denver District Attorney’s Office. The investigation was funded by a Genetic Genealogy and Familial Match Searching grant from the Bureau of Justice Assistance in 2020.

Groshart was detained in Sedalia, Missouri and is being extradited to Colorado. He is facing charges of first-degree sexual assault, first-degree burglary, and second-degree kidnapping in Denver County Court.


Lynn, Nate. “Suspect Arrested in 2004 Sexual Assault Case.” NBC News 9, October 5, 2022. Accessed October 7, 2022. https://www.9news.com/article/news/crime/suspect-arrested-sexual-assault-cold-case/73-89b079ab-65ca-4285-a6c6-251734415b65.

McRae, “Genetic Genealogy, DNA Help Denver Police Solve Sexual Assault Cold Case.” CBS News, October 5, 2022. Accessed October 7, 2022. https://www.cbsnews.com/colorado/news/genetic-genealogy-dna-denver-police-solve-sexual-assault-cold-case/#l8xlr4mg73li4ynjdj9.

Nicholson, Kieran. “Denver Cold Case Suspect is Arrested in Missouri in Connection to 2004 Sex Assault.” Denver Post, October 5, 2022. Accessed October 7, 2022. https://www.denverpost.com/2022/10/05/denver-2004-sex-assault-cold-case-arrest/.


First Name Jason
Last Name Groshart
Other Names
Victims 1 (Details)
IGG Started 2020-00-00
Case Cleared 2022-10-04
IGG Org nd


Case ID Name Age Case Opened Location Investigating Org Most Serious Charge Disposition Court
1765 n/a Jane Doe nd 2004-03-30 Denver, CO Denver PD; FBI; Colorado BI All sexual offenses, including rape, sexual assault, and child molestation Case is currently pending before the court Denver CO 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.