NEW HAVEN, Conn. (AP) -- Police are trying to figure out who shot and killed a 28-year-old man in New Haven.

Officers responding to a report of a man being shot just after 12:54 p.m. Saturday found Garry Williams in the driveway of a Dewitt Street home. He had been shot in the chest and was in cardiac arrest when emergency medical technicians arrived.

Williams was taken to the Yale-New Haven Hospital emergency department, where physicians pronounced him dead less than an hour later.

Police say they still haven't identified a suspect.

Detectives are on the scene collecting evidence and interviewing people in the neighborhood. They ask anyone with information to call the New Haven police department.