A 25-year-old man found floating in the water at Robert W. Crown Memorial State Beach in Alameda on Thursday afternoon has been identified as Cuong Tran, according to the Alameda County coroner’s office. The cause of death is still under investigation. Cuong, an Alameda resident, was discovered at about 2 p.m. Thursday. Emergency personnel responded and administered medical aid, but he was pronounced dead at the scene, according to East Bay Regional Park police. Anyone who was in the area and might have seen something suspicious is asked to call park police at (510) 690-6549 or leave an anonymous tip at (510) 690-6521.