Reuters did an exhaustive investigation into Zimmerman. The investigation answers a lot of questions that many of you may have wondered about such as why Zimmerman got a gun, why Zimmerman was asked by neighbors to become the neighborhood watch captain, what types of incidents was Zimmerman involved with in the past in his role as neighborhood watch captain, how neighbors felt about Zimmerman, what types of crimes had been occurring in the neighborhood, what is the racial makeup of the homeowners in the neighborhood, etc.
http://www.reuters.com/article/2012/...83O18H20120425