Californian authorities have pleaded with Naya Rivera’s friends not to launch their own search parties to try and locate the missing star because it’s too dangerous.The Glee actress has been missing since 8 July after taking her four-year-old son, Josey, out for a boat ride on Lake Piru, where they enjoyed a swim. She never made it back to the vessel, and her boy was found sleeping onboard, alone, three hours later.