PITTSBURGH (AP) — A man accused of accidentally shooting his teenage friend to death in a Pittsburgh home has been charged with involuntary manslaughter. Police say 18-year-old Michael Anthony Hartwick Jr. also faces a weapons charge in the Sept. 8 death of 16-year-old Alexander Alman. Authorities have said Hartwick lived in the home and the pair were in his bedroom when they jokingly pointed weapons at each other. Hartwick’s gun went off and Alman was shot in the face. He died the following day at a hospital.