@maporsche,
The quality of logic is a product of the premises upon which it depends. The premises i have applied are pretty simple--even someone who is desperate to believe that guns in the hands of "civilians" save lives cannot escape the simplicity of the logic.
You have a situation in which a "shooter" is gunning people down. You have at the least dozens of people around carrying firearms (this premise based upon the stupid contention that such a situation would have saved lives had it existed). From that, the progression is pretty simple. Gun toters learn that someone is shooting people down. They pull out their guns. Any number of them see any other number of them with guns drawn--so they shoot. The police arrive to find any number of them waving guns around, and in each instance they tell them to put down their guns and step away.
You know, it really doesn't matter how many of the would be heroes shoot down other would be heroes--one is too many. It doesn't really matter how many would be heroes are shot down because they respond inappropriate to a police order to put down their guns--one is too many.
Don't tell me about my standards, MP. What about yours? Are you seriously trying to defend the proposition that we would be better of with dozens of armed people running around a college campus when a mass shooting is in progress? In 1871, James Butler Hickok (a.k.a., Wild Bill) was working as marshal in Abilene, Kansas. He became involved in a dispute with a saloon owner, Phil Coe, and when in the course of a street brawl Coe fired at him, Hickok shot and killed him. Hickok caught some movement from the corner of his eye, and turned and shot dead a deputy marshal, Mike Williams, who was coming to his aid.
So there you had someone who was experienced with firearms, and was good with them--he still killed another lawman in a confused situation. But you think it defies logic that dozens of armed boys with no experience wouldn't shoot one another, or be shot by the police, in a tense and confused situation? Tell me about logic, MP.