Klaus Dexel, the investigative journalist who tracked down the suspect, said: “Gullino received £30,000 from the DS between 1978 and 1990 and was frequently invited to security service events in Bulgaria. I think that means he had an important role in this murder but there is no evidence he was trained to be a killer, trained in the 'wet arts’. He is, however, a very well trained liar and able to cover his trail.”