i can't want to get snagged on the wall. >> the second time, his legs hit hard. more than halfway down, he looks for a potential landing spot. >> i was wondering, am i going to go into the lake, in which case i'm not sure i can swim because at this point i thought his broken legs. >> worse, he sees the rock directly below him. >> if i go into the general hard ground with the vertical speed that i have, i figured it would at least break my back if not kill me. >> matthew spots a metal storage container on the ground below surrounded by metal spikes. >> the last split second i tucked my legs up to try and miss the container unit. the metal spike came close enough that it glanced my nose, scratched my face, and actually caught my helmet and ripped my helmet off my head. in the last half a second, i thought that this spike was going to be the last thing that i see. >> he crashes to a halt and remains fully conscious. >> i was lying on the floor and started to get more conscious to