Pick Richard Ramirez as a serial killer then write a paper on Psychological Disorders,Have they been diagnosed with any? If yes, how?

Pick Richard Ramirez as a serial killer then write a paper on Psychological Disorders,Have they been diagnosed with any? If yes, how?
Which ones? Brief descriptions of them. What kind of treatment did they go through, if any?
Your Opinion: Do you think nature or nurture had a larger impact on this persons life? What do you think led this person to commit these crimes? Why? Do you think these crimes could have been prevented? How?
C. Do you believe that he/she is a Psychopath or Sociopath & Why?