London: In fresh revelations about the journey from normality to infamy of the man known as "Jihadi John", it has come to light that Mohammed Emwazi, the Briton identified as an Islamic State (IS) executioner, was once a star salesman for a Kuwaiti IT company.

Emwazi, the Kuwaiti-born but London-raised graduate who features in IS videos apparently beheading hostages in the Syrian desert, was quiet and rather withdrawn but had a natural gift for his work, a former boss in Kuwait City told the Guardian.