There are literally millons of psycho Frerards out there.
There is this one were Gerard's pretty fuckin' crazy. It's actually a little favourite of mine. It's called "The Lunatic's Prize". Here's a link:
http://m.fanfiction.net/s/7350991/1/The-Lunatics-Prize
c:
Author's response
I have already got this one, but thank you anyways!