A Wilkinsburg man faces charges of involuntary manslaughter and attempted homicide after police said he shot a man he was attempting to rob in Aliquippa, an encounter that ended with his suspected accomplice being fatally shot.

Yasin El Aman Shakir, 19, will also be charged with four counts of aggravated assault, four counts of reckless endangerment and firearms violations in connection with the July 14 incident. He is currently being held in the Allegheny County Jail on unrelated charges.

Detective Sgt. Steven Roberts of the Aliquippa police said witnesses relayed to police that Mr. Shakir, 19-year-old Jiwan Bailey of Penn Hills and another man went to Aliquippa with the intention of burglarizing a business. When that plan turned out to be "not viable," Sgt. Roberts said the men drove around the town.

At around 2 a.m., they got out of their car and followed 26-year-old Lucien Roberts and 21-year-old Brian Elmore, encountering them in the 100 block of Fifth Avenue. At that point, police said, Mr. Shakir brandished a handgun and opened fire, striking Mr. Elmore in the arm and leg.

Mr. Bailey charged Mr. Roberts, who had pulled out his own gun to return fire, and while the two tussled, Mr. Bailey was shot in the chest. He later died.

The two groups of men did not know each other prior to the encounter, which police believe was a robbery attempt.

Sgt. Roberts said Mr. Roberts will not be charged in the case because he acted in self-defense and legally possessed his weapon.

The third man who accompanied Mr. Shakir and Mr. Bailey is also not facing charges.

Mr. Shakir is awaiting transport to Beaver County for arraignment.