Psychopathy Checklist
- Glibness and superficial charm
Lack of empathy
Consistent decisions in their self interest, even where it is ethically questionable
Chronic, sometimes transparent lies, even with regard to minor things
Lack of remorse
Failure to take responsibility for their actions, and instead blaming others
Shallow emotions
Ignoring responsibilities
Persistent focus on gratifying their own needs at the expense of others
Conning and manipulative behavior
Iacutone's Blog 
hey buddy, there’s a book that I’ve been meaning to read that focuses on the high percentage of managers in corporate America that are clinically diagnosed as psychopaths
http://www.snakesinsuits.com/
Hey man, I have read Dr. Hare’s first book, Without Conscience, where he develops the actually test that tests for psychopathy among prisoners.