The gunman who opened fire outside a crowded Texas bar and killed three people in an attack that wounded more than a dozen had not been on the radar of authorities, federal and local investigators said Monday. The FBI and police in Austin said it’s too soon to identify the motive behind the mass shooting early Sunday that the FBI has said is being investigated as a potential act of terrorism , coming after the US and Israel launched an attack on Iran. “Our ultimate goal in everything we do is