Ar pistol trunk gun concerns?

[98Z]

The trouble is, there are two major flaws with that example. First, it was an on-duty cop armed with a conventional handgun, not a private citizen with a concealed AR pistol.

Second, the cop failed to prevent the crime. The shooter was already done shooting innocent victims, and was in the process of committing suicide when the cop opened fire.

How many rounds did the kid have in his magazine, Stan? How many spare mags were on him?