I'm sure most of you have seen this already, but for anyone who hasn't:
http://www.avengedsevenfold.com/news/m-shadows-talks-about-rev M Shadows does what it says in the title, and at the bottom there is a truly amazing memorial video, which is depressing, amusing, tear-jerking and laugh out loud funny in approximately equal measures.
It's a pretty awesome way to remember him, I think.