Who is Mark Walker? Well, apparently, if you ask him, he is Reebok.
If you ask anyone else? He's a three-and-a-half-year-old with a wicked jump shot. And some thoroughly screwed-up parents.
Creepy. Cute kid, but creepy.
The Slate article
The Reebok site
The interesting and further creepy P.S. is this - a professional film crew actually shot the video of Mark making the 18 shots in a row. The tape that his dad originally made wasn't good enough to air, so the pros redid it, but made sure not to "overproduce" it, so it still looked amateur.