Egypt's highest court has cleared 24 people charged with planning the so-called "camel battle" during the uprising in 2011.
That's when men on horse and camel backs charged into protesters in Cairo.
Some of those freed include senior figures of Hosni Mubarak's former regime.
The decision has enraged families who victims who died in the attack at Tahrir Square. For them, the trial is yet another example of a poorly prosecuted case after the revolution.
Al Jazeera's Rawya Rageh reports from Cairo.