The man who died in a suicide attack on Iraqi forces near Mosul was a former Guantanamo detainee and British citizen who had converted to Islam.
As reported by the BBC, the 51-year-old man was identified from a photo released by the Islamic State of Iraq and the Levant (ISIL), which claimed responsibility for the car bomb attack on an Iraqi military base.
The attacker, Ronald Fidler, who converted to Islam and took the name Jamal al-Harith, later called himself Abu Zakariya al-Britani, according to the identity he gave to ISIL in his report.
Previous reports said Fidler, who lived in Manchester, also went by the name Jamal Uden.
The BBC says it had access to documents Fidler signed in April 2014, when he entered Syria from Turkey.
In 2001, he was captured by American forces in Pakistan, from where he was transferred to Guantanamo.
According to the British media, he gave the United States useful information about the Taliban and was released two years later.
Bonus video: