U.S. law enforcement officials investigated on Monday whether anyone helped the gunman who massacred 49 people at a gay nightclub in Orlando, but said they did not believe anyone connected to the shooting posed a current danger to the public.
The FBI and other agencies were poring over evidence inside and in the closed-off streets around Orlando's Pulse nightclub, where a shooter pledging allegiance to Islamic State carried out the deadliest mass shooting in U.S. history.
The gunman, Omar Mateen, a New York-born Florida resident and U.S. citizen who was the son of Afghan immigrants, was shot and killed by police who stormed the club early Sunday morning with armored cars after a three-hour siege.