Key Players: John GuyProsecution in George Zimmerman trialPublished: June 25, 2013, 9:40 AMTags: Zimmerman, NewsSANFORD, Fla. – Title: Assistant State AttorneyBackground: He joined the State Attorney's Office in 1993.Recommended VideosInvolvement in case: He is one of the prosecutors in the George Zimmerman trial. WPLG