Opening statements begin in Derek Medina murder trial

Opening statements began Tuesday in the murder trial of a South Florida man who claims he shot his wife in self-defense before posting a photo of her body on Facebook.After five days of questioning candidates, a jury was seated late Monday in the trial of Derek Medina and sworn in before Miami-Dade County Judge Yvonne Colodny.Medina is accused of fatally shooting Jennifer Alfonso, 27, in the kitchen of their South Miami townhouse in August 2013. Police said Medina uploaded a photo of Alfonso's b