Isn't Ben Carson right about how people should react to a gunman out to kill people for sport?

Before Carson spoke on it, I had already thought the exact thing myself. You handle it like the three Americans on the French train. You don't just cower and hope he will shoot somebody else instead of you when he probably will shoot both. If people would rush these sickos and maybe tear off their testicles when they've got them subdued, it could take away the glamour of it in the sicko imagination and break this cycle of copycat shootings. The sickos like the idea of wielding power over helpless people. You need to turn the tables on them and have it end with their humiliation and powerlessness.