Who is Ray from Without Conscience: The Disturbing World of the Psychopaths Among Us and what is their importance?

Ray was one of Hare's first patients when he got his very first job out of grad school. Ray was a classic example of a psychopath. He manipulated Hare into getting him different jobs in the prison as well as a job with his father. When Hare finally saw what was happening and refused to continue helping Ray, Ray threatened him.