We carry guns because it's what we're into. We strategize and agonize and argue over caliber, capacity, reloads, carry methods.... Yada Yada Yada... And it's all good, because we can. This is America. Have at it.
But the example still isn't related to and doesn't support the assumption.
Well, ok, let's look at this a different way, then, maybe...
If this incident does not support the need for high capacity mags, then what argument would you raise instead to counter the Anti's claims that high capacity mags should be outlawed because they are not needed for self defense?