Jacksonville Shooting

Jacksonville Sheriff Mike Williams addresses the media on Sunday after the deadly shooting at a video game tournament at the Jacksonville Landing.

Florida highway patrolmen block the entrance to the Main Street Bridge near the scene of Sunday’s mass shooting at the Jacksonville Landing in Jacksonville, Fla.

Bomb squad police prepare a robot to enter a parking garage a block from the scene of Sunday’s shooting in Jacksonville, Fla.

Police at the scene of Sunday’s mass shooting at the Jacksonville Landing, a riverfront mall in Jacksonville, Fla.

Police investigate the scene of Sunday’s shooting at a video game tournament in Jacksonville, Fla.

A police officer directs a pedestrian away from a blocked-off area near the scene of a mass shooting Sunday at the Jacksonville Landing, a riverfront mall in Jacksonville, Fla.

The Coast Guard patrols the St. Johns River outside The Jacksonville Landing in Jacksonville, Fla. on Sunday. Florida authorities are reporting multiple fatalities after a mass shooting at the riverfront mall that was hosting a video game tournament.

A police officer stands by at the scene of a mass shooting at a video game tournament Sunday in Jacksonville, Fla.

Jacksonville Sheriff Mike Williams, right, talks to the media at a news conference following Sunday’s deadly mass shooting at a video game tournament.