Tengzhou

Zhang Shijun’s letter issued earlier this month urged Chinese president Hu Jintao to “use his wisdom” to officially reassess the “June Fourth tragedy, the event in China’s recent history that causes bitter weeping and choking back tears.”

He was taken away by police from his home in Tengzhou, Shandong province, around 2 a.m. on Friday, the Civil Rights and Livelihood Watch group said.