All These Guys Are Heroes

Former British special air service soldier Colin Barry was the smartest of all these grifters except for the guy we're about to talk about. He traveled to Afghanistan under the cover of working on housing projects for an engineering firm. This seems to have been as a way to hide his activities trying to ride intel for MI six, who he claims approached him for aid and may in fact have done so. In any case, Barry's time as a secret agent in Afghanistan came to an end when he shot to random Afghan citizens to death in a hotel bar in Kabul; he was jailed for murder.