A separate online video showed a gruesome display of radical fighters holding what appeared to be the victim’s head.

After the beheading earlier this week, the victim was determined to be Mohammed Fares, an anti-government fighter wounded in clashes against the Syrian Army earlier, according to the Syrian Observatory for Human Rights.

On Thursday, an online statement from a spokesman for the al Qaeda-affiliated Islamic State of Iraq and the Levant (ISIS), whose fighters apparently carried out the beheading of Fares, called for forgiveness for the killers and asked for “restraint and piety” from anti-government supporters.