Emotional tributes from castmates and friends are pouring in for "Glee" star Naya Rivera. Rivera was found dead in Lake Piru following a six-day search after she went missing during a boating trip with her son July 8. An autopsy by the Ventura County Medical Examiner's Office confirmed the identity of Rivera's body and ruled she died as a result of drowning.Music Credit: 'Creative Destruction' by Nihilorehttp://www.nihilore.com/