What causes a person to come a sociopath?

Answer:

There is a strong genetic link and much evidence to support the idea that psychopathy is passed down and is biological.

• Psychopaths don't have the same physiological responses to fear that constrain the behaviour of normal people, such as rapid heartbeat, sweating, dry mouth, trembling and muscle tension.
• Psychopaths don't have physiological responses to emotionally charged words such as "love" and "death" the way regular people do, suggesting that they process emotional stimuli differently.
• When one identical twin is psychopathic, the other is more likely to be psychopathic than those in the general population.
• Adoption studies indicate that children can inherit psychopathic traits from a psychopathic parent even when they are raised by different parents.
• When compared to non-psychopaths, differences have been found in a number of brain chemicals among psychopaths.

They are often reported as having an evil stare, sometimes with eyes that appear black rather then colored