Florida mall shooting

Jacksonville police officers guard an area on Aug. 27, 2018, near the scene of a fatal shooting at The Jacksonville Landing on Sunday in Jacksonville, Fla.

The coast guard patrols the St John’s river outside of the Jacksonville Landing in Jacksonville, Fla., on Aug. 26, 2018. Florida authorities are reporting multiple fatalities after a mass shooting at the riverfront mall in Jacksonville that was hosting a video game tournament.

Jacksonville Sheriff Mike Williams, right, holds a news conference, Sunday, Aug. 26, 2018, in Jacksonville, Fla., after a gunman opened fire Sunday during an online video game tournament that was being livestreamed from a Florida mall, killing multiple people and sending many others to hospitals.

Florida Highway patrolmen block the entrance to the Main Street Bridge near the scene of a mass shooting at Jacksonville Landing in Jacksonville, Fla., Sunday, Aug. 26, 2018.

Law enforcement patrols the St. Johns River by boat just outside the Jacksonville Landing where an active shooter was reported Sunday, Aug. 26, 2018 in Jacksonville, Fla. after a gunman opened fire Sunday during an online video game tournament that was being livestreamed from a Florida mall, killing multiple people and sending many others to hospitals.

A police officer directs a pedestrian away from a blocked-off area near the scene of a mass shooting at Jacksonville Landing in Jacksonville, Fla., Sunday, Aug. 26, 2018.

Police barricade a street near the Jacksonville Landing in Jacksonville, Fla., on Aug. 26, 2018.