Video: Batman cinema shooting eyewitness: 'I saw a girl with a bullet hole in her leg' A gunman wearing a gas mask set off an unknown gas before firing into a crowded cinema, killing at least 12 people and injuring at least 50 others, police said. Witness Jaime Marshall, who was in the cinema at the time, thought the shooting was a practical joke until she saw the bullet holes in the wall. That's when we started screaming for all our friends just to get out. We went up the stairs and we were looking over the lobby and police were out there. There was one officer in a gas mask holding a huge rifle and they were just waving people, trying to get people through the lobby as fast as possible ... I saw a girl with a bullet in her leg. Another eyewitness, Obed Sanchez said that at first he thought the "explosions" he heard were a "practical joke."