We don’t need to ban guns. We already passed a law against murder. If that doesn’t stop evil people from killing, passing a law against guns won’t magically make them be nice. You can’t legislate morality. Evil people do bad things. It’s always been this way. Outlawing guns will only prevent law abiding citizens from protecting themselves.
The reason progressives use these terrible tragedies to push gun control is because they know the only way to enslave a people, is to first disarm them.