The Allegheny County Medical Examiner's Office said Springer died of a gunshot to the head.
Jason Doetzer, owner of Iron City Armory on Washington Pike in Bridgeville, said he sold Springer a Glock 19 handgun with a 15-round magazine Tuesday.
He said Springer told him he wanted the gun for home protection and to shoot at the range. A store video shows Springer making the purchase.
“He was very attentive. We taught him about the gun and ammunition. He felt a bunch of guns,” said Doetzer, who said the Glock “is pretty much the most popular gun in the country right now.”