For those uninterested in clicking through: it’s a cartoon with four frames. In the first, a man holding a bat stands over a corpse, an observer says, outraged, “You beat him? What’s the matter with you?”
In the second, nearly identical image, the man is holding a garrotte; the outraged observer says, “You strangled him? What’s the matter with you?”
The third nearly identical image has the murderer holding a knife. “You stabbed him? What’s the matter with you?”
And the fourth, a gun: “You shot him? We have to do something about guns!”