How many people has John Wick killed onscreen?

I love the idea that even the greatest hitmen that ever lived eventually hang it up and simply retire.

Of course, then you run the risk of doing something that prompts them to come out of retirement. Here's a little tip — never mess with a retired hitman's puppy. I mean, you shouldn't hurt a puppy anyways, but especially don't do it when it belongs to one of the greatest hitmen who ever lived.

In one of the great action movie franchises, there's bound to be a bit of bloodshed. But just how much havoc has John Wick wrought across all his movies?