When an Islamist terrorist strikes, the West inevitably says, "we won't let this change us".
In the case of the Las Vegas shooter, this is "us". This is America. The shooting, the shooter -- homegrown, innate, intrinsic.
America places yuuge emphasis on success and fame. Was the killer really seeking to kill people, or was he seeking notoriety and fame? Whatever his motive, he short-circuited morality and died a killer.
And that's the way the Ball Bounces.