Based on what is out in public now, this is what likely happened:
Coach O fires Dameyune Craig
Aggy runs out of time
Refs put one second back on clock
Aggy wins a game (with the benefit of multiple close calls)
Coach Craig decides to talk shit (straight out of How To Be Aggy 101)
Cole N. Fisher (the N is for Nepotism) tries to reel Craig in (undoubtedly so he can brag to Uncle Jimbo about it)
LSU Coach Kragthorpe tells Craig to pipe down, get back to his sideline, have some class, etc.
Fisher stiff arms Kragthorpe as Fisher is ushering Craig away
Unbeknownst to Fisher, Kragthorpe has a neurological pacemaker, which acts up as a result of Fisher's shove
Kevin Faulk sees or hears about it and gets pissed
Faulk and Fisher thrown down
Faulk and Fisher are separated and Fisher goes and tells Uncle Jimbo
Uncle Jimbo denies knowing anything in post-game press conference
Aggy Athletic Dept. denies knowing anything about fight, Cole Fisher, Jimbo's family tree, etc. on Sunday
Cajuns are riled up