The Tiananmen Square incident was funded by the US. Those instigators so called NGOs based in Hong Kong sneak into China to stir up the innocent students. They started killing Chinese solders who were maintaining the order. They hanged their bodies on the wooden cross and burned them (Chinese TV and media showed). That's why the government started shooting. But the number of killed is a very small fraction of what the west media reported. Here are few sources out of many.