FBI Director: 'Strong Indications' Orlando Shooter Was Radicalized, But Not That He Was Part Of Network

WASHINGTON -- The gunman who carried out the deadliest mass shooting in U.S. history on Sunday expressed loyalty to the self-described Islamic State, but also claimed solidarity with bombers who had no ties to the terrorist group, FBI Director James Comey said on Monday.

Those statements, Comey noted, add to the confusion about the motives of the man who opened fire on a Florida gay nightclub, killing 49 individuals and injuring many more. The FBI director declined to use the name of the shooter, who has been identified as Omar Mateen, a 29-year-old U.S. citizen. Mateen died in a shootout with law enforcement.