British aid worker Alan Henning, another ISIS hostage, has been beheaded on video three weeks after the Scottish aid worker David Haines was executed in a similar fashion.

In the video, a man dressed in orange speaks to the camera, saying, according to ABC News, “I am Alan Henning. Because of our Parliament’s decision to attack the Islamic State [ISIS], I, as a member of the British public, will now pay the price for that decision.”

The executioner standing next to Henning then speaks to the camera before carrying out the grizzly act, saying, “The blood of [fellow slain captive] David Haines was on your hands, [British Prime Minister David] Cameron… Alan Henning will also be slaughtered but his blood is on the hands of the British Parliament.”

The video has yet to be authenticated by US or British intelligence agencies.

Henning was captured in Syria last December as he was driving an aid truck across the border between Turkey and Syria, according to the AP.  This was the second time Henning took part in an aid convoy into Syria where he and a group of Muslim friends delivered medical equipment.

According to the Guardian, a group of armed gunmen surrounded a warehouse, which Henning was in, and took Henning captive.  The gunmen said they were suspicious of Henning since he was not Muslim like the rest of the volunteers, and they were also concerned about a chip in his UK passport.  The other volunteers tried to show the gunmen how all UK passports carried a similar chip, but this did not deter them from taking Henning.

Earlier, Barbara Henning, the wife of Alan Henning, released her own video, asking ISIS to release her husband, saying, “Surely those who wish to be seen as a state will act in a statesman-like way by showing mercy and providing clemency.”

Barbara also said, according to the BBC, “Muslims across the globe continue to question Islamic State over Alan’s fate.”

Two British Imams, last month, also made a claim for sparing Henning’s life, saying holding Henning was against Islamic law and “haram [forbidden].”

At the end of the video, another hostage clad in orange is shown to the camera.  This fifth hostage was identified as American Peter Kassig, but like the rest of the video, these claims have not been verified yet.