The commander of Syria's rebels who overthrew the regime of President Bashar Assad, Ahmad Sharaa, said Wednesday that those involved in torturing and killing thousands of detainees will not be pardoned.

SYRIAN rebel leader Ahmed al-Sharaa vows to hunt down the torturers in Bashar al-Assad’s brutal prison after piles of corpses and clothes were discovered. Years of abuse, torture and death

Jolani, the leader of Hayat Tahrir al-Sham (HTS), said that his group will ask countries to hand over Bashar al-Assad regime officials who fled

Rebel leader Ahmad al-Sharaa's Islamist group is stamping its authority on Syria's state with the same lightning speed that it seized the country, deploying police, installing an interim government and meeting foreign envoys - raising concerns over how inclusive Damascus' new rulers intend to be.

NBC News' Richard Engel reports from inside one of Syria's most notorious prisons, Saydnaya military prison nicknamed "the human slaughterhouse." Thousands of people in Syria have rushed to the country's prisons after the fall of the Assad regime searching for any trace of loved ones they feared had disappeared into their unseen depths.

Syrian recalls horrors of Assad regime's massacres