Instead of "Rocket Guy", I would've said "Mad-Man", 'til I read this article and he appeared to be more of a sane man with a death-wish. Maybe not. Space.com as details
Sometime in the spring of 2002, [rescheduled to sumer 2003] a man who has somehow become known to the world as "Rocket Guy" plans to launch himself 30 miles (48 kilometers) straight up in a rocket of his own making.