FROM CNN WIRES:  Self-defense or murder? That's the question at the heart of the trial of George Zimmerman, a neighborhood watch volunteer who killed 17-year-old Trayvon Martin. Monday marks the start of jury selection in Seminole County, Florida, where Martin was fatally shot on February 26, 2012. (…) An initial decision not to pursue charges … Continue reading George Zimmerman trial begins today with jury selection – George Howell reports