Life imitating TV.
Actually the TV version of CSI was based on a real story of a few years ago (pre 9/11) (I'm too lazy to google it right now). The guy who died did have a condition which caused him to basically lose his mind, he became physical with everybody and then tried to open the outer door. At that point, EVERYBODY panicked and jumped on him and he died. In real life as in the TV episode, the DA did not prosecute, knowing he would never get a jury to convict.