Investigators are trying to find about 50 women who were photographed decades ago by a man now on death row for murdering two aspiring models in the early 1980s, authorities said Tuesday. Detectives are investigating whether the women were raped or killed between 1975 and 1984 by William Richard Bradford, said Los Angeles County sheriff's officials. They posted photos of the women on a department Web site in the hope that the public could help account for them.