The rifle type used in the deadly Bend shooting on Aug. 28 has enjoyed a popularity boom among millions of gun owners, while it is reviled by gun control advocates as an icon of mass murder.

Police say a gunman fired more than 100 shots at The Forum Shopping Center with an “AR-15 style” rifle, killing two men in the Safeway supermarket. Officers found the shooter dead at the back of the store from a self-inflicted gunshot wound, next to his rifle and a shotgun.