Psychopaths lack remorse and empathy for others, and only have shallow emotions. Many of them wouldn't really care if you lived or died. They are known to be emotionally disconnected to other people, and view them as just objects to be manipulated or destroyed. Many psychopaths are mass murders, but they can also be coworkers, spouses or anyone you may come in contact with. Read more here...
http://www.telegraph.co.uk/culture/books/10737827/Psychopaths-how-can-you-spot-one.html
http://www.telegraph.co.uk/culture/books/10737827/Psychopaths-how-can-you-spot-one.html
