A psychopath is a person who suffers an antisocial personality disorder*, meaning, that this persons has a disgress (?)/disgraceful? lifestyle. This person transgresses the rules, regulations and laws.
A psychopathic person usually is good-looking, selfish, clever, deficient in his relationship(s), doesn't feel empathy, suffered from bullying in the/duringchildhood and mistreated animals.

* Un desastre = disaster  y; trastorno = disorder
* Psicópata = psychopath (sustantivo), psicopático = psychopathic (adjetivo)

Excellent, good job! I can only see minor mistakes! Although I'm not sure what you mean to say with "a disgress lifestyle".

Saludos, William.

Actually, it's a widely spread misconception that psychopaths are more intelligent than anyone else. Probably due to the fact that the popular image that we see in the media is of characters like Hannibal Lecter when it truth the mental disorder has no correlation with one's intelligence (or looks!). Nor are all psychopaths successful in life, even if many of them may be drawn to careers with more prestige. However, there have been studies that show "the severity of criminality increases in psychopaths who are more intelligent". And while I am not sure how frequent animal cruelty is among psychopaths, it's certainly a warning sign for many mental disorders, antisocial personality disorder among others.

Usually the psychopaths are very smarts, with a good job because almost of them have a degree. Some if not almost they love animals but hate persons, have a good look and infiltrate in society very easy. It's really hard identify on psychopath, a psychopath it's different than an sociopath. 

Here it's a little article about that subject but it's in Portuguese: http://www.sol.pt/noticia/126390