COLUMBIA, Md. -- Police on Sunday identified the gunman in a shooting Saturday at a shopping mall here that left three people dead, including the shooter. Authorities said they are still trying to determine the motive.
"We want to find out why this occurred," Howard County police Chief William McMahon said at a news conference in the mall parking lot.
The gunman was identified as Darion Marcus Aguilar, 19, of College Park, Md. One of the victims, Brianna Benlolo, 21, was also from College Park, but police said they had not yet found any evidence that the gunman knew Benlolo or the other victim, Tyler Johnson, 25, of Mount Airy, Md. Both victims worked at a skateboard store in the mall.
Authorities said they searched the gunman's home, recovering ammunition and a computer they plan to examine. Efforts to identify the shooter were delayed because of fear he was "booby trapped." Aguilar was carrying a backpack containing homemade explosives, police said.
Aguilar, armed with a 12-gauge shotgun, was dropped off by a taxi on the mall's upper level about an hour before the shooting, the chief said.