Farad Polk was visiting his son at the Cook County Jail in July 2014 when he was directed to "go down the hallway and turn to the right."
He passed through a heavy steel door that slammed shut behind him. Authorities say the 8-foot-by-8-foot cell was a super-maximum security prisoners' visiting room.
Guards could not hear his cries for help. Polk was rescued by Chicago Fire Department personnel after he broke a sprinkler head.
He was trapped in the room for 32 hours without food, water, bedding or a toilet. He sued for emotional trauma. Sheriff's Department spokeswoman Sophia Ansari announced the county's settlement with Polk yesterday.