The Islamic State executioner known as 'Jihadi John' was today identified as Mohammed Emwazi

The Islamic State executioner known as 'Jihadi John' was today named as a university graduate from London who was able to flee to Syria despite being on an MI5 terror watch list. Mohammed Emwazi, of Queen's Park, west London, was allegedly spoken to three times in one year by police and security services in Tanzania, the Netherlands and Britain. The 26-year-old, who studied computer programming at the

University of Westminster, is said to have travelled to the Middle East three years ago and later joined ISIS. Tonight, the daughter of David Haines, one of the killer's beheading victims, has said she would only 'feel closure and relief once there's a bullet between his eyes'. Bethany Haines (right) lost her father when he was brutally executed by Emwazi. The 44-year-old Scottish aid worker (pictured with his executioner) was seized in Syria in 2013, and then murdered on video last September. Pictured left is Emwazi's west London home today.