To your question, The one that out rightly bans guns would have definitely prevented this. We can debate to no end about how she should have, could have, would

To your question, The one that out rightly bans guns would have definitely prevented this. We can debate to no end about how she should have, could have, would have, etc taken preventive measures. But the fact of the matter is, accidents do and will happen. We should really take a look at how literally the rest of the world does it and take notes.