aye but some weapons are easier to kill with.
It takes less balls to wield a gun and shoot it form a distance than it does to pick up a knife, charge for a person and stab them face-to-face with arterial blood splatter.
there's a distance between them.
it's part of the reason why, in tokugawa japan for example, guns were looked down upon because they take almost zero bravery and little skill to use.

you don't see the whites of your victim's eyes.