Suffolk County Police Homicide Squad detectives are investigating the death of a man who died in
police custody on June 23.

A detention attendant in the Sixth Precinct was monitoring the cell block when he noticed a prisoner,
Quinn Harrison, laying on a bench in the cell in an awkward position at approximately 9:40 p.m. The
detention attention notified the desk sergeant. Officers then began CPR and applied an automatic
external defibrillator. Members of Selden Rescue responded, continued CPR, and administered Narcan.
Harrison was transported by ambulance to Stony Brook University Hospital where he was pronounced
dead.

Harrison, 39, of Shirley, was being held overnight after being arrested earlier in the day on two bench
warrants and one count of Criminal Possession of a Controlled Substance 7th Degree.

Homicide Squad detectives, the Internal Affairs Bureau and The New York State Attorney General are
investigating.