Jolene Dorothea Mathiesen
Jolene Dorothea Mathiesen, 45, was held at the Jefferson County Detention Facility in Golden, Colorado, when she died in the early morning of May 13, 2026. According to the Jefferson County Sheriff's Office, a deputy found her unresponsive in her bunk during a routine cell check, and she was pronounced dead at 4:56 a.m. The sheriff's office says the cause of death is unknown, and the First Judicial District Critical Incident Response Team is investigating while the Jefferson County Coroner's Office determines the cause. No family statements about her life were included in the coverage.
Cause of death, as reported: Cause not yet determined
Reported by: Jefferson County Sheriff's Office (the agency that held her); Jefferson County Coroner's Office (medical examiner or coroner); First Judicial District Critical Incident Response Team (outside investigators).