ISIS executed a man accused of backing Assad's regime - before realising he was innocent and beheading the informant they used for giving them 'fabricated evidence'.
The extremists had killed the man in the city of Deir Ezzor after he was charged with 'cooperating with the Nusayri regime' - a significant minority of Shia Muslims in Syria.
But they later realised the execution was 'unjust' and arrested the informant who had provided them with 'false reports'. According to the Syrian Observatory for Human Rights ISIS unearthed new evidence that proved the first man they had killed was not guilty.
The informant was then executed on charges of 'providing false evidences about a person’s cooperating with the regime and causing his execution.'