George Zimmerman calling 911 about Trayvon Martin pursues him after police tells him not to then kills Trayvon & Zimmerman out on self defense felt his life was threatened??

Via NPR.org: "Now that 911 recordings show how a white Florida man continued to follow a 17-year-old black boy even after police advised him not to — and captured the sound of the man killing the unarmed youth with a shot to the chest — Trayvon Martin's family wants the FBI to take over the investigation into his killing...".* Cenk Uygur, former prosecutor Steve Oh, and Misty Kingma break down the shocking 911 audio with shooter George Zimmerman on The Young Turks.