(AP) — A 19-year-old Florida man is now facing three first-degree-murder charges related to a shooting last week that killed a television news reporter, a 9-year-old girl and a 38-year-old woman, sheriff’s officials said Tuesday. The warrant noted the gun’s slide was in the locked position and the magazine was still inserted, which is consistent with the firearm being shot “until it ran out of ammunition and the slide locking to the rear. At times he “made hand symbols of guns as he pointed the gun at his head,” the warrant said