People came by the thousands the day after the rebels arrived in Damascus, racing down the once desolate stretch of road, up a jagged footpath cut into the limestone hillside and through the towering metal gates of Syria’s most notorious prison. They flooded the halls lined with cells, searching for loved ones who had disappeared into the black hole of torture prisons under Bashar al-Assad’s government.

Some tore through the offices of the prison, Sednaya, looking for maps of the building and prisoner logs. One woman shoved a photograph of her missing son toward others walking by, hoping someone had found him. “Do you recognize him?” she pleaded. “Please, please, did you see him?”

In the entrance hall of one section, dozens of men with sledgehammers and pickaxes tore up the floors, convinced there were secret cells with more prisoners deep underground. Crowds swelled around them as people clambered to see what they found, pausing only when Israeli airstrikes landed close enough to shake the prison’s walls.

“Move back, move back!” one man, Ahmad Hajani, 23, yelled. “Let them work!”