"Taking cover from what?" has that wonderful "States rights to do what?" energy.
"See, they weren't massacred! Look at this snapshot long before the end of the event where many people are alive, taking cover from a hail of bullets, and successfully hiding for their lives! Checkmate, libs!"
I mean, it's right there, with 24 upvotes.
"TOTAL LIB-DEATH"
They defend the events at Tiananmin Square because it's exactly what they want: the mass murder of people who disagree with them. "Denialism" is just a strategy to maintain the guise of moral superiority.