Maybe it's not:

Dr. Robert Hare's checklist for psychopathy:

1. Glibness/superficial charm
2. Grandiose sense of self-worth
3. Need for stimulation/proneness to boredom
4. Pathological lying
5. Conning/manipulative
6. Lack of remorse or guilt
7. Shallow affect
8. Callous/lack of empathy
9. Parasitic lifestyle
10. Poor behavioural controls
11. Promiscuous sexual behaviour
12. Early behaviour problems
13. Lack of realistic, long-term plans
14. Impulsivity
15. Irresponsibility
16. Failure to accept responsibility for own actions
17. Many short-term relationships
18. Juvenile delinquency
19. Revocation of conditional release
20. Criminal versatility
Narcissism is also a characteristic

In my readings about Narcissism, it was evident that a narcissist is a very emotional person, but very self indulged. They can spend hours in their own catharsis, not thinking about how anyone else is affected. They are convinced that they're always the victim, and nothing is ever their fault. The world revolves around them, and the world owes them. They are the perfect martyrs. Yet they are still cabable of empathy, whereas a psychopath is not. So how can both of these personality traits be thrown together? It should also be noted that not all psychopaths have come into trouble with the law, and certainly not all are criminals. From my own readings and studying it has been noted that there are plenty of psychopaths in office and in managerial positions in institutions. So it should be clear that not all psychopaths can necessarily be impulsive either. Some can display a tremendous amount of patience, making them more thorough in their planning as well. In short, any kind of person can lack a conscience. Just my thoughts though, I'm no expert. Any other thoughts on this?