A youth minister who owned a sawed-off shotgun that discharged and killed a teenager was charged with involuntary manslaughter and other counts. Keith Owens, 21, of Duquesne, was showing the weapon to a group of young people meeting at his home on Nov. 20, according to police. A 14-year-old boy was handling the gun when it discharged, striking 15-year-old Chelsea McAllister, of Duquesne, in the face, killing her instantly, police said. Owens, of Petra International Ministries in Penn Hills, was charged Thursday with involuntary manslaughter, possession of an offensive weapon, endangering the welfare of children and corruption of minors. The...