Marvell Reasonover
Marvell Reasonover, 28, died in March 2023 while held at Cook County Jail in Chicago. Correction staff found him unresponsive in his cell in the Division 9 maximum security unit and he was taken to Mount Sinai Hospital, where he was pronounced dead. The Cook County medical examiner's office ruled his death a homicide caused by multiple injuries from an assault. Records reported by Injustice Watch and South Side Weekly say his cellmate was responsible and had assaulted another person days earlier, and that officers had not checked on him for at least an hour before he was found. The Sheriff's Office said the death is under investigation and the cellmate had not been charged.
Cause of death, as reported: Killed by another person in custody (neglect alleged). The medical examiner ruled the death a homicide from multiple injuries from an assault, and Injustice Watch reported that jail records show officers did not check on him for at least an hour before he was found.
Reported by: Cook County medical examiner's office (medical examiner or coroner); Injustice Watch (reporters).
Sources (7)
- Illinois Criminal Justice Information Authority, Death in Custody Reports (edition of 2026-07-28)
- Cook County Jail inmate dies after violent attack in cell
- Jail Inmate Murdered in Cook County Division IX Super Maximum Security Jail
- Cook County jail inmate deaths: Marvell Reasonover, Melvin Turner found dead in cells day apart
- Cook County Jail’s deadliest year in decades reveals repeated lapses and failed oversight
- Cook County Jail’s Deadliest Year in Decades Reveals Repeated Lapses and Failed Oversight
- Cook County Jail’s Deadliest Year in Decades Reveals Repeated Lapses and Failed Oversight