Mandela 'signer' rubbishes murder claims An allegedly bogus sign language interpreter hired for a Nelson Mandela memorial service addressed by the likes of Barack Obama, has dismissed media claims he had faced murder charges in the past. The signer, Thamsanqa Jantjie, stood just feet from the US president and other world leaders on the stage at last Tuesday's event at Soweto's World Cup stadium. Enraged sign language experts said the signing by Jantjie, who claims to be schizophrenic, amounted to little more than "flapping his arms around." Raising further security questions, the Sunday Times newspaper reported that Jantjie had admitted being part of a mob that burnt two people to death in 2003. "It was a community thing - what you call mob justice - and I was also there," Jantjie was quoted as telling the paper, which said charges against him were dropped on grounds that he was mentally unfit to stand trial. Contacted by AFP on Monday, Jantjie dismissed the report as "nonsense." I don't know that. Sunday Times is talking nonsense," he said, but refused to elaborate. Jantjie directed AFP to the national prosecuting authority to verify if he had any criminal record. But the prosecution agency has already declined to "confirm or deny" the allegations, and said it does not keep records of closed cases. The government has said it was probing whether a security lapse had occurred in hiring Jantjie, as claims emerged of a string of criminal violence charges. The private TV channel eNCA reported on Friday that the signer had also faced rape, kidnapping and theft charges. The African National Congress (ANC), South Africa's ruling party, said it was probing claims that some of its members were directors of the company for which the signer worked. Last week, the government formally apologised for any offence caused, and admitted a "mistake" had been made. It claimed the company that Jantjie worked for had "vanished into thin air."