I kind of wish Six13's website explained the name. Also, here's my favorite Jewish video for if you want to join the Evil League of Evil.https://www.youtube.com/watch?v=gFAhVyyL3SU
There are 613 commandments in the Torah. http://en.wikipedia.org/wiki/613_commandments
Oh, duh. I was reading it as 6:13 and trying to figure out what book it was from.