Cao Jianwei, male, 40 years old. The police raided the couple's home in Beijing on October 25, took away the computer and arrested Mr Cao. On October 21, Mrs Zeng was one of seven plaintiffs from six countries who filed a lawsuit with the United Nations committees on torture and human rights, timed to coincide with Jiang's visit to the US. Mrs Zeng's nine-year-old daughter had been staying with elderly grandparents since then. The couple's friends in Beijing had been unable to locate Mr Cao, a former manager of a Beijing University education investment company. Mrs Zeng heard of her husband's arrest through her parents-in-law.