Trayvon Martin: Nagging Questions

Ask me a question, or leave me a comment. It's my understanding, from news accounts and the Internet, that George Zimmerman was part of a neighborhood watch. Zimmerman patrolled the neighborhood. What was it about Martin that grabbed Zimmerman's attention? Was Martin running from door to door, in an attempt to break into homes? Perhaps, Martin was tipping around cars, looking for the right one to steal. No? Martin was loud, disturbing the peace. Or, Martin was knocking on doors, at random. Martin was using illegal drugs as he strolled back to his father's. No, too? Why did Zimmerman find it necessary to hunt Martin? Zimmerman contacted police, and was advised to wait according to news reports. Zimmerman stalked and confronted Martin. Again, what was Martin doing for Zimmerman to use the "Stand Your Ground" law? Zimmerman confessed to police that he felt threatened by Martin. Do you follow a person that you feel is a threat? Why not just keep an eye on the person from a distance? Zimmerman backed by "Stand Your Ground" law stepped-up to Martin, a young man who just wanted to relax with a bag of Skittles and tea, and gunned him down. Why?