Troops ‘laughing’ as they shot Tiananmen protesters: U.S. document - Troops deployed from China’s provinces were seen joking and possibly mocking their victims as they randomly fired at pro-democracy protesters in Tiananmen Square, according to a U.S. account declassified Tuesday for the 25th anniversary. Soldiers killed hundreds of unarmed civilians in Tiananmen Square, with some estimates putting the death toll at more than 1,000. China’s government has since tried to erase the public record about the crackdown and ahead of the 25th anniversary it stepped up surveillance, censorship and detentions of activists.