The Jacksonville Sheriff’s Office confirmed a mass shooting and “multiple fatalities,” as well as “many” people transported away from the scene. Police said just before 3 p.m. that one suspect is dead, but officers were unsure if there’s a second possible shooter.
A Jacksonville hospital received multiple gun shot wound patients after 3 p.m. 
If "many" people were transported away from the scene, and that one suspect was dead just before 3 p.m. It is logical the many people were transported to a local hospital around that same time. 