Zhu Ling was studying at Harvard University in 1994 when she was poisoned . Now almost 40 years old , Zhu is mostly bed - ridden and is practically blind . She apologized to her roommate who was n't charged due to lack of evidence . A petition to the White House urged U.S. authorities to drop the case .
Zhu Ling was studying at Tsinghua University in 1994 when she was poisoned . Now almost 40 years old , Zhu is mostly bed-ridden and is practically blind . Suspicion turned to her roommate who was n't charged due to lack of evidence . A petition to the White House urges U.S. officials to investigate the case .