I think Jess is going nutty cause he thinks he will be killed, which is why he threw the party and didn't want his buddies to leave. Next episode looks like it will be going down since the book is found and Hank is asked about it. I don't think Mike killed Gus though...not yet at least.
you know MTV is BRINGIN THE BOYS BACK! Beavis and Butthead are coming back :) still in their high school stage and will be commenting on both old and new music! Gonna be great!