The shooter, identified as Bryan Riley, 33, a former US Marine, also wounded an 11-year-old girl who underwent surgery for seven gunshot injuries, Polk County Sheriff Grady Judd told a news conference.
Riley, who had no connection to the victims, engaged in a shootout with police before giving up, and later tried to grab a police officer's gun while being treated in the hospital for his own gunshot wound, before being subdued again, Judd said.
