Oprah Winfrey addressed her brother’s cause of death 35 years after his passing. In honor of Pride Month, the professional talk show star opened up about Jeffrey Lee, admitting he “died from AIDS.” While Oprah is getting showered with praise over the decision to speak out, RadarOnline.com has uncovered Lee’s sad, dark, and lonely last days, in which he claimed his famous half-sister had turned her back on him. Lee was the son of Oprah’s mother by a different father, and he came clean about his diagnosis before his death in December 1998 at 29. “I have AIDS and Oprah knows it, but she’s not sym…