Why? Here's why:
That's Lars Andersen, a Danish archer who is able to out-Hawkeye Jeremy Renner and, shit, out-Legolas Legolas any day of the damn week. You may have seen that video when it went viral in January, which is really the only excuse for your jaw not currently occupying the general vicinity of floor. The dude can shoot with absurd accuracy and speed, while doing the sort of acrobatics a 51-year-old man really has no business indulging in. Mobile targets are fair game, shooting upside down is a piece of cake, and even fuckin' grabbing arrows people are shooting at you and firing them back is no big deal.
He even looks appropriately dorky for a Hawkeye.