Pulse nightclub attack renews AR-15 rifle debate: would a ban make a difference? | US news | The Guardian
In preparation for what would become the deadliest mass shooting in American history, Omar Mateen bought an .223 caliber AR-15-style assault rifle and a 9mm semiautomatic pistol, law enforcement officials said. Related: Hillary Clinton calls for renewed assault weapons ban: they’re a ‘weapon of war’ The shooters in December’s San Bernardino terror attack also used…