Holy crap, guys. I didn't know this would be so popular. I just uploaded it to show a friend :P. If Death Note videos are so desirable, I'll try to grab a few English episodes somewhere and make a remix or something. Message me if that's what you'd like. Also, check out my other videos :P.
A clip from episode 37 of Death Note. Light laughing as he admits to being Kira. This is his original laugh; it's unedited.