What will make a child grow up into a psychopath? Metamorphosis happens somewhere along the way

From what I gathered, it's a congenital neurodevelopmental disorder which causes reduced secretion of epinephrine and cortisol. That leads to hypoactive amygdala that is responsible for processing and regulating emotions. The result is that the individual has a low tendency to be anxious and feel fear and also lacks ability to recognize fear in faces of others, which normal individuals recognize as a signal that a person does not pose a threat to them. Since this mechanism doesn't function in psychopaths they are more likely to attack others and disrespect authorities already in early childhood. Due to hypoactive amygdala, they have probably better control over frontal lobes, which are responsible for thinking, reasoning, decision-making, and planning, therefore many of them become very intelligent. Devoid of emotions and using cold logic to their own profit. At least that's how it sounds from these researches I read.

Sometimes it can be a cross between both the brain chemistry and what happened in their childhood

No hugs as a baby

Law will... law is the act of creating disorder... of those who follow legalism, the lottery is random on who becomes the psychopath..

I think that psychopaths are born..

I think you are talking about Sociopaths, I am sure they are made.

Childhood abuse/neglect usually, under enough pressure anyone can be a psychopath.

I have wondered about this and knowledge is always updating so, from the WWW:

To put the matter simplistically, psychopaths are born, and sociopaths are made. Both psychopathy and sociopathy, and APD generally, share features with narcissistic personality disorder (NPD), the condition exhibited by persons commonly called narcissists.

Are you looking for tips on how to create one?

Just like ones tastes for coffee and beer.. just kinda happens one day.

Born that way I'm pretty sure

an abusive childhood. parents didn't show the kid love