CIA Director John Brennan told a Senate Intelligence Committee hearing that the agency “not been able to uncover any direct link” between Mateen, who was shot dead by police, and foreign terror groups.
Mateen claimed allegiance to a variety of militant Islamist groups, including some at odds with each another, in a series of phone calls to 911 emergency services and a local cable television news channel during his rampage.
The Federal Bureau of Investigation has interviewed Mateen’s second wife, Noor Salman, who knew of his plans, according to a law enforcement source, and prosecutors were preparing to present evidence against her to a federal grand jury.
Salman has not commented publicly since the attack, which began around 2 a.m. Sunday.
“We’re working with our law enforcement partners to find out everything that we can about what happened at the Pulse nightclub,” Lee Bentley, the U.S. Attorney for Florida’s middle district said on Wednesday. “We are using all law enforcement and legal tools to reconstruct not only the events of that night but the events of the past several months.”
Obama, accompanied by Vice President Joe Biden, was to travel to Orlando in the latest in a long list of trips he has taken to console victims of mass shootings during his 7-1/2 years in office. In December 2015, a married couple inspired by Islamic State shot dead 14 people in San Bernardino, California.