Asadollah Lajevardi: A Ruthless Prosecutor and Prison Warden

Psychopaths may also be manipulative, charming and exploitative, and behave in an impulsive and risky manner. They may lack conscience or guilt, and refuse to accept responsibility for their actions. Psychopathy is one of the most well-known and well-studied personality disorders. But is there an underlying biological reason for psychopathy? And if so, can the disorder be cured?