The simple answer here is because of slavery.
According to Oyez, "The Sixth Amendment's guarantee of a right to assistance of counsel applies to criminal defendants in state court by way of the Fourteenth Amendment."
So, this is a major victory as it protects criminal defendants in a whole new court of law.
Below are the two events that happened after the Tiananmen Square Protests:
3. The image of the Tank Man appeared on the front pages of Chinese newspapers.
Tank Man is an unknown protester who opposed the tanks during the protest. He became a symbol for civil disobedience.
4. There were large-scale protests against the incident outside China.
Criticisms from around the world flooded China - Europe, Americas, Australia, Asia. There were also demonstrations by Chinese students in various cities outside China.
He was a president and i think he was assassinated.