“There have been so many school shootings over the last 40 years that researchers have been able to develop a profile of the typical mass murderer. … The other statistic that emerged from a study of active killers is that they almost exclusively seek out ‘gun free’ zones for their attacks. … Now tacticians believe the signs themselves may be an invitation to the active killers. The psychological profile of a mass murderer indicates he is looking to inflict the most casualties as quickly as possible. Also, the data show most active killers have no intention of surviving the event. They may select schools and shopping malls because of the large number of defenseless victims and the virtual guarantee no on the scene one is armed. As soon as they’re confronted by any armed resistance, the shooters typically turn the gun on themselves.” (11/14/08)