Running AmokAlthough commonly used in a colloquial and less-violent sense, the phrase is particularly associated with a specific sociopathic culture-bound syndrome in Malaysian culture. In a typical case of running amok, a male who has shown no previous sign of anger or any inclination to violence will acquire a weapon and, in a sudden frenzy, will attempt to kill or seriously injure anyone he encounters. Amok episodes of this kind normally end with the attacker being killed by bystanders, or committing suicide.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC181064/">And:
Captain Cook is credited with making the first outside observations and recordings of amok in the Malay tribesmen in 1770 during his around-the-world voyage. He described the affected individuals as behaving violently without apparent cause and indiscriminately killing or maiming villagers and animals in a frenzied attack. Amok attacks involved an average of 10 victims and ended when the individual was subdued or “put down” by his fellow tribesmen, and frequently killed in the process. (Which also puts
certain classic cartoons in a different perspective.)
The phenomenon is independent of the weaponology, and in fact predates semi-automatic weapons by at least a hundred years in this case. Public mass murder/suicide has a long and ignoble history in human culture. Taking away the weapon of choice does nothing to alleviate the danger of it happening or to illuminate the circumstances that cause it, nor does it provide insight into potential warning signs.
Edit: I think a better approach would be to use the gun ownership, licensing, and training process as a way to identify those at risk of exhibiting such behavior. We're not going to get rid of the guns, so we might as well use them as bait to identify and document the truly disturbed before they can pop off.