Perpetrator of mass violence? Orlando shooter fit bill

It's been two weeks since the worst mass shooting in US history and authorities have yet to announce any breakthrough in the investigation into the motives of gunman Omar Mateen. Mateen, a 29-year-old US citizen of Afghan origin, was buried quietly in a Muslim cemetery near Miami, about three hours from the gay nightclub Pulse in Orlando. Mateen entered the club and opened fire with an assault rifle, and police killed him after a three-hour standoff.