If he had the gun illegally, he is a highly emotional animal (homo sapiens) without strict training (else he would have controlled himself), who had a gun. Else he had the gun legally, so he is a highly emotional animal (homo sapiens) without strict training (else he would have controlled himself), who had a gun.
Completely true. Thank you for insinuating that it is the individual that killed these kids. The firearm was merely an efficient tool. But he could have done it with a knife, or his car, etc.
Secondly, as stated numerous times in the NRA thread, the question of the weapon being obtained legally or illegally is relevant insofar as a potential solution to prevent further such tragedies can be found. If it is illegally obtained, I have yet to hear anyone offer a solution to murders committed by criminals that obtained a firearm illegally.
If it is legally obtained, then we can begin to discuss whether or not the system failed (and what would be required to fix it) or whether only the individual is to blame.