Guns have no other purpose than killing someone or something. All the other murder weapons Americans use, from automobiles to blunt objects, exist for another purpose and sometimes are used to kill.
But guns are manufactured and bought to kill. They invite their owners to think about killing, to practice killing, and, eventually, to kill, if not other people, then animals.
They are objects of temptation, and every so often, someone comes along who cannot resist the temptation — someone who would not have murdered, or murdered so many, if he did not have a gun, if he were reduced to a knife or a bludgeon or his own strength.
I wish that the right wing would admit that, while people kill people and even an “automatic” weapon needs a shooter, people with guns kill more people than people without guns do.