NEW YORK (Reuters) – Former Temptations singer Richard Street died of a blood clot in a lung in a Las Vegas hospital at the age of 70, his widow said on Thursday. Cindy Street said her husband died on Wednesday at St. Rose Dominican Hospital in Las Vegas. She had taken him to the emergency room on Friday after he had trouble breathing. “He was fighting to the very last moment,” she said in a telephone interview from Las Vegas. “He was very happy. He had the kind of life he wanted. We laughed all the time. …