A year after Kanye West's mother, Donda, 58, died while recovering from plastic surgery California authorities have launched a probe into the possible role of Donda West's nephew, Stephan Scoggins, 46. A registered nurse, Scoggins was supervising West's post-surgery care with West's assistant and a friend when, according to a source familiar with the situation, he left the house to attend a baby shower the day after West underwent breast augmentation and liposuction last Nov. 10. West died that evening at a Los Angeles hospital. At the time, the death of the rapper's mother was described by a family spokesman as "the result of complications from a cosmetic surgical procedure," a statement that placed intense scrutiny on West's surgeon, Dr. Jan Adams. But last January, a Los Angeles coroner ruled that West died of "multiple post-operative factors," effectively clearing Dr. Adams of responsibility. In this new development, an investigator with the California Department of Consumer Affairs has issued subpoenas asking individuals "to testify in the matter of the investigation of Stephan Scoggins."