A Munhall man found last month with a gun that traced to a killing provided the statements needed to secure charges against three additional suspects this week, according to court documents.
Allegheny County police confronted Corey Palmer, 19, this week after they received the results of ballistics tests that tied a gun Munhall police took from him in April to the shooting death of Trijuan Williams, 17, according to a criminal complaint.
Mr. Palmer then outlined for police the manner in which he and three others approached the Martha Street home of Williams April 21 and opened fire, striking him once in the chest and causing him to die on his kitchen floor, police wrote.
Homicide Lt. Andrew Schurman announced in a news release Friday that Mr. Palmer and one other suspect, Terron Brown, 19, of McKeesport, had been arrested.
Two other suspects -- Deondre "Boosie" Broadus, 19, of East Pittsburgh and Marquille "Killey" Wright, 19, of Wilkinsburg -- remained at large Friday night.
All face charges of homicide, conspiracy, recklessly endangering another person and a gun violation.
According to a criminal complaint, Mr. Palmer told police the four went to Williams' home and Mr. Wright directed them to sneak toward the dining room, where they spotted Williams through a window. When Williams walked into the kitchen, they followed and at some point opened fire and ran away, police wrote.
Detectives said Mr. Palmer tossed the gun he used into a recycling container and returned to the spot where Mr. Wright hid his gun in hopes of tossing it into a river. But a criminal complaint indicates that Munhall police responding to a call for a man spotted with a gun stopped Mr. Palmer with the weapon and arrested him on a gun violation and marijuana charge April 25 -- four days after the shooting.
Williams' aunt and guardian, Valetta Hosey, said a detective informed her Thursday of the arrest warrants.
"I'm just very grateful that they got the people that were responsible for my nephew's death," she said Friday.
Ms. Hosey said she knew some of the suspects by their nicknames but knew little of them. She said her nephew never told her of any problems with them.
"I don't know what the altercation was that led up to the shooting," she said.