I saw a report that said the range from Mandalay Bay to

[MineralMan]

15. We may never know that motive, though.

Unless the man communicated something to someone else, we'll never really know. However, it's likely that some people who know him will be able to provide some clues about motive.

There are, sadly, people who build up rage silently within themselves and do not share it or the reasons for it with anyone. He apparently acquired a number of firearms and, also apparently, managed to make at least one of those capable of fully automatic fire. Those acts are deliberate, and probably are related to whatever rage he felt.

Why he chose this particular place and time to vent his rage in such a deadly fashion may never be known. If he did not reveal that level of rage to anyone, it may always be a mystery. It was clearly planned, though. People don't just take multiple firearms and the amount of ammo that was expended up to hotel rooms in Vegas. I'm certain the guy went there with this kind of mayhem in mind, and may have planned to attack that event in particular for some reason I don't understand.

His brother, who apparently only had sporadic contact with him said, "He was just a guy." Such descriptions are not uncommon with people who do such things. "He was a quiet guy." "Good neighbor." "Never caused any problems." You hear things like that often after someone does irrational violence.

I hope we learn more, but I'm also ready to not ever know.