Trayvon Martin parents to testify?
Florida prosecutors could wrap up their case against George Zimmerman, but it's still not clear if they'll call Trayvon Martin's parents to testify. Martin's parents have said it's their son who can be heard calling for help on 911 calls, as he and Zimmerman fought. Zimmerman, charged with second-degree murder, claims he was defending himself when he shot and killed the 17-year-old.