You seem pretty cold-hearted. I hope this is all keyboard talk. These perpetrators ranged in ages from 15 to 19. Do you really think that death is a fair punishment for their actions? Just pulling out the weapon and scaring them away is enough to deter the rest of the crime, why add more drama with murder?
Fine, a pistol whip or two, crack a few skulls and knock out a couple of teeth, but murder? C'mon, these are children.