Officials: Orlando suspect a U.S. citizen, probe underway for terror ties

Investigators were reviewing a range of possible terror links to a gunman who opened fire at a crowded Orlando nightclub early Sunday, leaving at least 50 dead and 53 others wounded.

A federal law enforcement official identified the attacker as Omar Mateen of Port St. Lucie, Fla.

The official, who is not authorized to comment publicly, said Mateen is a U.S. citizen, and investigators were reviewing whether Mate