Face it – this is practically the NRA’s definition of “a good guy with a gun,” and it did not work. Instead, they arrested a woman trying to save her own children – which she eventually did with no police assistance.
The police were wearing full body armor, were highly armed, and did nothing.
Furthermore, the NRA’s “good guy with a gun” logic is full of holes – and not bullet holes, either. See my comment here: https://www.gocomics.com/nickanderson/2022/06/23