Medically speaking, what exactly is a seizure.
Is it the brain shutting down to protect itself because it can't handle the pain anymore?
Spontaneous/paroxysmal electrical discharge of neurons resulting in change in function/behavior. Causes are damned near everything/anything under the sun.
Heh, I was about to type out that "this was a savage beating," but then stopped mid text and remembered this IS ATOT... then I continued anyway, has nothing to do with race, but that was an absolutely disgusting event. Man filming, manager, etc. should all be held accountable for their (in)actions. It's depressing to see humans acting this way.