An inmate in the Dauphin County prison has died. 31-year-old, Monique Mason died this morning. She was hospitalized Saturday after she was found unresponsive. Mason was in prison for aggravated assault, possession of a firearm and other charges. She also had a county parole detainer for drugs. The Dauphin County Coroner’s Office and Criminal Investigation Division are conducting a joint investigation to determine the cause of death. An autopsy is scheduled for later this week.