Yes.   And it wouldn't have stopped the Orlando killer, who was an American.  The San Bernadino killer was from the United States.  His wife was from Pakistan and Saudi Arabia.  Dylan Roof, the North Carolina church killer, is an American.  The Sandy Hook shooter is American.  The Columbine killers were American.  The Aurora movie theater shooter is American.  If anything should be banned, it is Americans who own guns that help make killing easier.