Psychopath and sociopath from what I've come to understand are two distinctive characteristics, sharing some similar behavioral instincts. Both characters deviate from normal social behavior, this kinds of people are more likely to break the law, commit a crime, as serious as murder, which is because they lack moral consciense and unable to differentiate between right and wrong on normal grounds.
The thing that sets them apart is that psychopath are more of a natural traits, sociopaths on the other hand can be developed over a period of time as a result of physical abuse, or some other from of trauma from childhood days.