On what should have been the biggest night of his life, the 70-year old singer-songwriter Sixto Rodriguez was, once again, nowhere to be found. Searching for Sugar Man, the blockbuster 2012 documentary that finally, miraculously introduced his music to the world, was about to win the Oscar for Best Documentary. But Rodriguez hadn’t just skipped the ceremony at L.A.’s Dolby Theatre. He was back home in Detroit, sleeping. “I missed the program,” Rodriguez says “We just came in the day before from South Africa. My daughter Sandra called toto tell me.