I like the way Spencer Cobryn dives over the drums in the video.
It's certainly not Spencer, he wasn't around anymore at the time.
People have actually argued in the past that it's Damon doing the dive but it's nearly impossible to say for sure who it is.
It's definitely not one of the band members because there's a split second where you can see Matt, Solomon and Jesse standing in the background while Mystery Man flies over the kit. And he's wearing a vest while the others are wearing t-shirts.
Whoever it is, he seems to be doing a similar move in the video for All You Need Is Me.