Psychopaths share these qualities:

Believe in atheism/evolution.
Usually above average intelligence, but not always. Anyone who has the ability to comprehend the philosophical implications of atheism/evolution is capable of becoming psychopaths.
High self-esteem and narcissism: They view themselves as smarter, "the evolutionary man of the future", ahead of their time, better than others.

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A psychopath is anyone who has make themselves their own standard of authority. Evolutionary theory, atheism and humanism have created fertile ground for a large crop of psychopaths to germinate, grow and come to maturity. Most of them are not really dangerous, but they have adopted their own personal version of morals and made themselves their own god. Whatever they have decided is ok to do, is ok to do! They can murder, and it doesn't bother them because after all, they kill mosquitoes and rats and cows all the time. Man is just another animal.

Psychopaths not only believe in the theory of evolution, they have understood its implications for the purpose and meaning of the existence of man. Since there is no God, then all morals are determined by the collective agreement of mankind. There really is no such thing as right or wrong, since sin is defined by a God they do not believe in. Sure society has rules, taboos etc, but they are smart enough and perceptive enough to notice that these rules are changing. Whereas adultery and homosexuality was once a capital offence, today it is openly promoted. A psychopath is someone who is lived in a time when adultery was a capital offence, but was able to look ahead to the present time when he realized adultery would be the norm and accepted without consequence. Living in a time when adulterers were stoned in the public square, they are able to look forward to the present time when TV commercial openly say, "Life is short, Live it up, Have an affair, Call us today." A psychopath is able to do things others view as wrong and it does not bother them because they believe that whatever they have personally decided is right, is right and they don't care if others have determined it is wrong.

They can murder, and it doesn't bother them because after all, they kill mosquitoes and rats and cows all the time. Man is just another animal. We are only here by random changes and have not real purpose. They have comprehended that the animals they kill suffer just as much as men. They have noticed that social animals that live in communities, like Meerkats experience depression when they kill one of the pack members. They notice that animals and man both grieve over the "death of a loved one". Since Darwin and humanists teach that man is just an "animal", if you can kill an animal, you can kill a man. If killing mosquito, rat, cow, chicken, fish, meerkat, lion or dog doesn't bother you, why would it bother you to kill a man? This is actually very rational thinking.

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You would think the psychiatry industry could make a lot of money off psychopaths. In fact the psychiatry industry do not treat the various psychopathic personality disorders since they understand they cannot be fixed and are determined to be untreatable. They have also discovered that no matter what they try, nothing changes the psychopath into a "normal person". The reason the psychiatry industry cannot fix the psychopath, is because they are unwilling to do the only thing that would cure them: Attempt to convert their belief system from atheism into Christianity. Until you address the underlying "faith" of the psychopath from atheistic Darwinism, into bowing down in worship to their God and creator, Jesus Christ, there is no hope for the psychopath.

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It is impossible for a psychopath to be a Christian. Indeed they are usually atheists! They view themselves as their own highest power and god!
When mentally ill people confess their sins to Jesus and repent of their sinful lives and put their faith and trust in God, they will be almost instantly cured of mental illness. Why not visit a good, Bible believing our local church in your own home town.