911 Tapes Raise Questions In Fla. Teen's Shooting
Police in Florida have released recordings of 911 calls from the night Trayvon Martin was killed. The unarmed black teenager was visiting his father outside Orlando when he was shot by a white neighborhood watch volunteer. George Zimmerman says it was self-defense, but Martin's relatives say the 911 tapes paint a very different picture. They want federal authorities to take over the investigation.