If that YouTuber was a pretend YouTuber with ill intent, everyone would now be criticizing the police for allowing a tragedy to happen. You know it, I know it, everyone knows it. You cannot have it both ways, if you want a free society, where the dangerous roam with no consequences for their actions, tragedy can occur. If you want a police state, you will be safer, but with less freedom. We used to have a nice balance, what happened? The radical left happened. I commend the police officer involved, because we cannot have strangers just wander into public buildings. Have we learned nothing?