SANFORD, Florida (Reuters) - George Zimmerman, the Florida neighborhood watch volunteer who killed unarmed black teenager Trayvon Martin, will learn on Thursday whether he will be released on bond for a second time. Circuit Judge Kenneth Lester spent nearly a week reviewing evidence submitted by defense lawyers at a June 29 bond hearing and a court spokeswoman said he will rule on Thursday. Zimmerman is charged with second-degree murder in the February 26 shooting death of 17-year-old Martin in a gated community in the central Florida city of Sanford. ...