US mainstream news outlets like CBS News with actual reporters on the ground at the time: https://www.cbsnews.com/news/there-was-no-tiananmen-square-massacre/
Classified US communications with assets on the ground: https://wikileaks.org/plusd/cables/89BEIJING18828_a.html
Image Analysis
From your CNN link:
But there’s no question many people were killed by the army that night around Tiananmen Square, and on the way to it — mostly in the western part of Beijing.
Saying that the “Tiananmen Square massacre” killings actually happened in other parts of the city may be an important academic distinction, but it isn’t a particularly stirring defense of the army’s actions.
Let me be clear here, No one’s denying skirmishes and bloodshed. But the way it is portrayed in the western media is actually far from the ground reality. Have a read at that btw even WikiLeaks provide evidence of fabrication by the US