One night, at a barbecue in Wilkinsburg, Pa., near Pittsburgh in 2016, a gunman fired at the partygoers, driving them to a house’s back porch, where a second gunman picked off victims with an assault-style rifle. They killed five people,
One night, at a barbecue in Wilkinsburg, Pa., near Pittsburgh in 2016, a gunman fired at the partygoers, driving them to a house’s back porch, where a second gunman picked off victims with an assault-style rifle. They killed five people,