NORTH BRADDOCK, Pa. -- Police have made an arrest in the shooting deaths of two teenagers found in a woman's home on Baldridge Avenue Wednesday night.

Police said the woman came home at about 7:30 p.m., saw the body of her son's 17-year-old friend, Daniel Underwood, in the living room, and called for help.

After searching the rest of the home, officers discovered the woman's 19-year-old son, Jonathan Hutson, dead in a rear bedroom.

It appears that Underwood and Hutson, both of North Braddock, were shot earlier in the afternoon, police said.

On Thursday afternoon, police arrested 18-year-old Erskine Smith, of North Braddock.

Jim Morton, of the Allegheny County police, said that the three teens were friends.

Hutson's mother told Shiba Russell that she spoke to her son 90 minutes before the incident, and he told her Smith, Underwood and one other boy were at the house.

Police say Hutson and Smith were playing video games when an argument about another topic began, and shots were fired.

Smith is being held at the Allegheny County Jail.