In light of the Las Vegas tragedy, mental health is brought up again. But what is truly the difference in a mass killer vs average person, mentality wise? For example: An adult that admits to being attracted to little kids and having fantasies about them, although has never acted or intend to act on it ......... they will be viewed as being just as sick in the head as someone that has acted on it. So while there's a huge difference between the two in their actions, mentally they are not much different. Also, what is the mental difference of someone that kills a single person for whatever reason vs someone that kills numerous as the same time? Most of the time the person that committed a singular murder would not be considered a mental case, but rather someone that's just cold hearted and despicable. But almost always, a mass killer is considered insane. I'm asking this because it seems all this mental health talk doesn't seem to prevent anything, especially when the average person fits the so-called profile. You can have a loud mouth person that posts thousands of trash talking threats a week on social media or a quiet person that rarely speaks their mind. Which ever one commits another mass killing, them being too outspoken or too quiet would fit the profile anyway. People talk about inflicting harm on their bosses, bullies, family members, friends, and etc, all the time. Most of it is just considered venting trash talk. But when someone actually brings that talk into existence, then how are they mentally any different from those that just speak it out of anger? This infamous quote comes to mind ...... “There are two types of people in this world…Doers and watchers.” Is the only difference between a mass killer and the average people would be the average person has the sense and lack of will to avoid doing so? Why do so many of us think the same violent thoughts and not carry it out, while only a minority do carry those thoughts out? Is it just the inevitable probability factor, or is there really something about us mentally that prevent us from going too far? And if so, is it taught or inherited? And for those that claim they never have any type of violent thoughts, just realize that you are being entertained by violence on a regular basis. So these questions apply to everybody.