Mikey Osborne's Journal is a note found on Bosco in D.B Technical High School.
"The war continues. The Tunnel Fucks keep trying to take the pool room, so we've set up a little surprise for them. We strung up the prisoners and took their heads for trophies. They want this pool, they'll have to stumble over the bodies of their friends and family to get it. COME ON UP ASSHOLES."