Rokos Basilisk, You deleted your own comment because it didn't make sense.  You didn't say you could have handled the shooter if you were in the same room.  You said you could have handled him if you were in the same hotel.  Now tell us how you would have gotten into his room quickly without being shot.  One of the few things you're right about is that almost 600 people were killed or injured.  Unfortunately, you don't want to do anything to prevent similar occurrences from happening again.