A day before killing four people in a mass shooting in Philadelphia last week, authorities say the gunman went to his first victim’s door wearing a dark mask, shot through it and yelled that he was law enforcement before entering the home and continuing to shoot, police officials said at a news conference Monday.
The details were revealed a day after police announced that it was likely Joseph Wamah Jr., 31, had been killed in the early hours of July 2, and not during the larger July 3 attack, as police had initially thought, and that a 911 call reporting the gunshots had been misrouted to the wrong neighborhood.
