And sure enough, overnight the AP reported that bump stocks were indeed found in the shooter's hotel room. Here's an example of how bump stocks can "turn" a semi-automatic rifle into an "automatic" rifle. I put them in quotes, because the rate of fire is similar, but its still one trigger pull per bullet. The stock just uses the recoil to oscillate very slightly where the trigger becomes depressed very quickly.
I, personally, see no point in bump stocks. It was literally invented to circumvent the laws in place and have NO place on the market. Wanna talk common sense gun control? Tackle gimmicky stuff like this...
I think bump stocks are silly as well. They either slip over your existing stock (so why have a nice stock?) or replace your existing stock (why get a nice stock to begin with?), and they significantly reduce accuracy while causing premature wear on parts of the lower receiver. Binary triggers on the other hand are not silly and quite useful, but ultimately they accomplish the same thing as a bump stock which is to simulate auto fire.
I worried for a long time that bump stocks would be used in a shooting, but I never expected this. My expectation was some awkward loser would try to use one and would find that he couldn't get any rounds on target and would have major issues just trying to maintain steady fire. But, unfortunately, this was guy was not that type at all. He was a very detailed planner. He was also very intelligent in the way he planned this massacre. He had elevation, he had firepower, he had multiple angles, etc. He used bipods for stability and control, and a variety of optics (of the two pics of rifles released so far, one had one looks like an Eotech or other holographic optic and the other was a powered scope) to keep rounds on target plowing through the crowd. He may just be a sick and demented psychopath. His father was a psychopath. It has a significant genetic component and is heritable. Environmental factors also play a role, and considering his father robbed banks, used firearms, escaped from prison, and then was on the FBI Top 10 list -- those kinds of action definitely provide an environmental catalyst to the genetic underpinnings of a future psychopath.
Guess we will see soon enough, but I wouldn't be surprised to find out that he gambled heavily and frequently using it as a stimulus and a way to "feel right" due to his psychopathy and eventually hit a cold streak. I know there have been recent reports from his CTRs (federal currency reports that casinos file) showing he had significant betting activity in the very recent past. Psychopaths have a low resting heart rate and are so preternaturally calm that they feel compelled to gamble, commit crimes, use drugs, skydive, and other high risk activities just to feel some excitement. This actually makes them quite good at other risky activities like Wall Street finance, business, and trading because they have a huge risk tolerance and a high appetite for stress. It doesn't impact them the way it impacts you or me. Its probable that a psychopath is actually reading my post right now (or will shortly) as most estimates place them as being 1-2% of the population. Essentially that means that 1-2 people out of a hundred in the general populace.
Psychopaths have an extremely grandiose self-worth. They are richer than you, smarter than you, better looking than you, have a more attractive wife/GF than you, and are very adamant about letting you know it in a braggadocious way. <--- That's their opinion of their self.
They don't have empathy or are able to turn it off at will, but unlike sociopaths that may have little to no empathy and just can't grasp it, they are so charming and intense that they are able to fake it and convince you that they care (when they actually don't care one bit). And, psychopathy is not a binary thing -- it's kind of like a scale, and can range from someone who barely qualifies and might be viewed as just having an anti-social personality to someone who maxes out all the traits and characteristics of a psychopath or somewhere in between. From confirmed media reports and police press conferences, the Vegas Shooter actually introduced himself as a gambler when he met people, bragged to people about how much he won (his brother and many neighbors knew about several specific slot & video poker jackpots that he told them about or sent pictures of and the exact amounts), moved around frequently and lived in quite a few different states, and was married several times. It was also notable that his brother frequently referred to him as a "multi-millionaire" and then specifically said that the Vegas shooter made "2 million dollars" with his real estate company and "made me wealthy as well." Seems fairly probable that the Vegas shooter frequently used those specifics when talking with others so they immediately came to mind when his brother was discussing him. The Sheriff over the Las Vegas Metropolitan Police Department has also specifically called the shooter a psychopath. I don't believe he is using that term generically. The FBI Behavioral Science Unit has certainly been consulted and has likely already made a profile of this guy which the Sheriff would have probably been made aware of to help target their overall investigation. However, I will add that one of the news outlets did speak with a former BSU supervisor that said he didn't yet see anything in this guy's background that would indicate a predilection for homicide/suicide. I don't quite get that as being the son of a diagnosed psychopath is a pretty strong piece of background that could explain the shooter's actions.
Psychopaths are not every prone to suicide as their grandiose self-worth means they normally think too highly of themselves to end their own life. But, there have certainly been psychopaths that have killed themselves, and there is documentation as to why. One, they are arrested/captured and face long imprisonment or certain death. They cannot bare the thought of being unable to engage in all the stimulating activities that led to their arrest and cannot bare the destruction of the grandiose persona they had constructed. Secondly, they are not willing to let someone else kill them -- in their grandiose view they much prefer to end their own life than to let someone less superior do so. Third, something else happens that would/could lead to the destruction of the grandiose persona they have built for themselves. Loss of financial wealth, power, or the control of others would make them "normal" or less superior to others and unable to maintain their grandiose picture of their own self. This is pure speculation, but as I referenced earlier, I wouldn't be surprised if he hit some kind of cold streak and started losing when he gambled or had investments that took major losses. Additionally, his girlfriend or whatever she was -- definitely appeared to enjoy the trappings of his material wealth, and there are reputable reports that he recently sent $100,000 to the Philippines where she is originally from and is currently staying. On the flip side, Claire McCaskill just told ABC News that there is insufficient evidence to say he was under financial pressure due to gambling losses. His CTRs show huge amounts of gambling transactions, but no one is yet saying if there were any major losses. McCaskill may just be saying they don't have the evidence yet, or that he didn't have major gambling losses. However, his girlfriend used to work as a high-stakes casino hostess and her social media profiles showed she listed her occupation as "gambler." Perhaps she lost a ton of money gambling. That's important to clarify, and obviously investigators will find that out very soon
Before information came out about his father being a diagnosed psychopath, I pondered whether or not he had a medical issue. There are cases of people experiencing significant personality and behavioral changes due to things like brain tumors, head trauma, and certain legal/illegal drugs. I remember one case of a man that was taking medication (I think for Parkinson's) and it caused him to lose huge amounts of money gambling and he started engaging in frequent and risky homosexual sex (guy was married with kids). When the medication was stopped he returned to normal. There's not a lot of evidence about what effect drugs (legal or illegal) have on someone that has a genetic predisposition for psychopathy so we just don't know what kind of impact it could have. Again, outside of the things I'm saying are confirmed , when I say probable, perhaps, appeared, etc I am just speculating. I think just about everyone that is familiar with this case is at that point because a motive is not yet readily apparent and there are a multitude of possibilities. Especially when you consider his age and socioeconomic status, he's just not in the target pool of the usual types of people that do these types of things. Everyone is grasping at straws. That being said, there are only so many possibilities. I know there are certain people with political motives pushing the idea that he may be linked to Islamic terrorism (and ISIS did claim responsibility), but outside of ISIS' claim there isn't anything yet that backs that up unless you make an extremely generalized link between the nationality of his girlfriend and add in the fact that he traveled to Dubai. But millions of people do the same thing, so that seems to be at the very bottom of the list until new evidence emerges.