WILLIAMSPORT – Two men are dead from gunshots after a series of events that began with a fistfight in downtown Williamsport.

Thomas Matthews III, 32, was being sought for killing Kerry Dewayne Young, 37, Wednesday evening when he committed suicide at his girlfriend’s residence in Lock Haven Thursday morning, police say.

The affidavit used to obtain an arrest warrant for Matthews prior to his death details witness accounts of what happened beginning about 7 p.m. Wednesday.

The two men engaged in a fistfight in the lobby of the River Valley Health Center on Hepburn Street after which Matthews was observed by a security guard taking something from under seat of a Mercedes sedan.

Young, of Williamsport, drove off in his vehicle and Matthews and his girlfriend did the same in his but in a slightly different direction.

Matthews sped to West Fourth and Elmira streets, a short distance away, got out and with a .40-caliber handgun shot multiple times into the driver’s side of Young’s car that was westbound on Fourth.

Young’s car crashed into parked vehicles and it came to rest on its side.

He was extricated and taken to UPMC Williamsport Regional Medical Center where he died at 9:53 p.m. Wednesday from a gunshot wound to the head.

Matthews and his girlfriend left the scene in the Mercedes that later was observed outside his home in Lock Haven.

Police surrounded the residence but did not enter until a search warrant was obtained.

Matthews was not there. Police then went to his girlfriend’s residence on Bellefonte Avenue and spent the rest of the night attempting to talk him into surrendering.

Matthews, the registered owner of two handguns, killed himself shortly after his girlfriend came out about 7:45 a.m., they said. Autopsies on both men are scheduled Friday.

Investigators would not disclose the motive for the health center altercation but said it did not involve drugs.

Had he survived, Matthews was facing charges that included criminal homicide.

On-line court records show he had minor brushes with the law in Clinton County and in July 2017 was placed on three months’ probation in Perry County for possessing a firearm in violation of a protection from abuse order.

Young had convictions in 2018 in Lycoming County for drunken driving and possession of a controlled substance and in 2013 in Monroe County in a drug case for which he was sentenced to 20 to 40 months in prison.