Ding Zilin and others in Tiananmen Mother Movement have been detained. This report is from New York Times on March 29, 2004.
“At least three family members of people gunned down by the Chinese military during the June 1989 crackdown on dissent in Beijing have been detained, as the authorities seek to prevent protests connected with the 15th anniversary of the massacre, relatives said on Monday. ”
Full article is here. This article is blogged by Xiao Qiang