There's a lot more where that came from
http://www.cnd.org/June4th/massacre.html
https://www.gettyimages.com/photos/tiananmen-square-massacre
Also you can find plenty on reddit by just searching "Tiananmen square"
Reporters were kept away by force and the CCP tried as hard as they could to hide all evidence. Crushed protestors were washed down drains with hoses, and many were whisked away to secret graves. Despite this, there is still significant photographic evidence
(This was copy pasted from Reddit)