Probability judgement. People are most likely to judge probability on what they hear most, or even on what they've heard last.
The school shooting has captured the news cycles for the last several weeks. And because crises can't go to waste, that's all that girl hears. I wouldn't doubt that she's actually terrified, not just of school shootings, but gun owners and guns. Probably WAY more than cars, or people who drive recklessly.
Old bass turd is 97 and off his nut. Don't judges swear an oath similar to the military? Protect and defend the constitution against all enemies, foreign and domestic?