An Iraq war veteran took a gun out of his checked luggage and opened fire in a crowded baggage claim area at Fort Lauderdale's airport on Friday, killing five people, months after he showed up at an FBI office behaving erratically.
Esteban Santiago, ۲۶, who was taken into custody immediately following the shooting and questioned at length, was expected to face federal charges in the shooting rampage, said George Piro, special agent in charge of the Federal Bureau of Investigation's office in Miami.
Piro said investigators had not ruled out terrorism as a possible motive in the rampage and were reviewing the suspect's recent travel.
Santiago, who had served in the U.S. military, had arrived in Ft. Lauderdale shortly before ۱ p.m. local time (۱۸۰۰ GMT) on a connecting flight from Alaska, authorities said, when he retrieved a ۹mm semi-automatic handgun from his checked luggage and began firing indiscriminately.
Broward County Commissioner Chip LaMarca said on Twitter that the gunman went into a restroom to load his weapon and came out firing. Witnesses told MSNBC television he only stopped after running out of ammunition, at which point he surrendered to police.
Cellphone video posted on social media showed travelers kneeling and treating victims on the floor next to a carousel. At least two victims had pools of blood from apparent head wounds.
The gunman, who wore a "Star Wars" T-shirt, said nothing as he fired, witnesses told MSNBC.
"This is a senseless act of evil," Florida Governor Rick Scott told reporters.
A White House spokesman said President Barack Obama had spoken to Scott and Broward County Mayor Barbara Sharief and had extended his condolences to the loved ones of the victims.