WATERBURY, Conn. (WTNH) — Police are investigating a homicide after a man was stabbed to death early Wednesday morning in Waterbury.

Around 3:14 a.m., police responded to a medical assist complaint in the 200 block of Fairlawn Avenue, which investigators later deemed as a homicide investigation.

Officers located an unresponsive man sitting in a vehicle in the residence’s driveway with a sustained stab wound to his chest. He was taken to St. Mary’s Hospital, where police said he was pronounced dead just before 4 a.m.

Police identified the victim as 42-year-old Marlon Brathwaite, of Waterbury. Police said he lived at that residence.

Police said Brathwaite was allegedly stabbed by a 16-year-old during an earlier altercation at the Irving Gas Station located at 1417 East Main St.

Investigators located the teen, and police said he is in custody with charges pending related to this incident.

The investigation is ongoing. Anyone with information is asked to call the Waterbury Police Detective Bureau at (203) 574-6941 or Crime Stoppers at (203) 755-1234.