Orlando killer appears to have been “homegrown extremist”

This undated image shows Omar Mateen, who authorities say killed dozens of people inside the Pulse nightclub in Orlando, Fla., on Sunday, June 12, 2016. The gunman opened fire inside the crowded gay nightclub before dying in a gunfight with SWAT officers, police said.MySpace via APORLANDO, Fla. — The gunman whose attack on a gay nightclub left 49 victims dead appears to have been a “homegrown extremist” who espoused support for a jumble of often-conflicting Islamic radical grou