An armed dad reportedly stopped a school shooter in Oregon. Then someone on Instagram said: “Good guy with a gun is not the answer.” Wait… WHAT? She says we should prevent school shootings instead of relying on “blind luck.” I agree prevention matters. But the school had locked doors. The shooter got through them. Police arrived in about three minutes. And an armed civilian was already there. She calls it luck. But he made a decision to carry long before that day. And when he saw what was happening, he made another decision. He went inside. Here's my question: If an armed citizen stops a school shooter, is that proof armed civilians can make a difference, or does the fact that a shooting happened mean prevention already failed? I want to hear both sides.