While some psychiatrist believe a psychopath is solely created by experiences after birth, others believe that genetic construction and enzymes existing before birth are largely responsible for psychotic behavior in an individual. Alternatively, many psychiatrist believe that a psychopath is the result of both nature and nurture. Dr. David Weinstock, a renowned psychiatrist in Arizona who has worked with countless psychopaths in Arizona state prisons and hospitals, suggests that a psychopath is not only the product of horrendous parenting and exposure to abuse, but also some genetic composition and brain abnormalities causing lowered activity in some regions of the