Florida gunman seen as self-radicalized, not directed from outside

Orlando: The man who killed 49 people at a gay nightclub in Florida appears to have acted alone, without direction from the various Islamist militant groups he professed sympathy for, authorities said as they delved into the roots of the worst mass shooting in modern U.S. history.

Federal law enforcement officials said the 29-year-old gunman, Omar Mateen, who worked as a private security guard at a gated retirement community, seemed to have been largely inspired by radical ideology he was exposed to over the internet.