Fake Signer at Mandela Event Accused in Mob Attack Just when it seemed the scandal over the bogus sign language interpreter at Nelson Mandela's memorial had run its course, a cousin and three friends say he was part of a mob that accosted two men found with a stolen television and burned them to death by setting fire to tires placed around their necks. Thamsanqa Jantjie never went to trial for the 2003 killings when other suspects did because authorities determined he was not mentally fit to stand trial, the four told The Associated Press Monday. They spoke on condition of anonymity because of the sensitivity of the fake signing fiasco, which has deeply embarrassed South Africa's government and prompted a high-level investigation into how it happened. Their account of the killings matched a description of the crime and the outcome for Jantjie that he himself described in an interview published by the Sunday Times newspaper of Johannesburg. His cellphone rang through to a message saying Jantjie was not reachable. Instead of standing trial in 2006, Jantjie was institutionalized for a period of longer than a year, the four said, and then returned to live in his poor township neighborhood on the outskirts of Soweto. At some point after that, they said, he started getting jobs doing sign language interpretation at events for the governing African National Congress party. Jantjie told the AP that he has schizophrenia, hallucinated and believed he saw angels while gesturing incoherently just 3 feet away from President Barack Obama and other world leaders at the memorial on Tuesday. In the interview Thursday, Jantjie said he had been violent "a lot" in the past, but declined to provide details. He blamed his behavior on his schizophrenia, saying he was institutionalized for 19 months, including a period during 2006. The 2003 killings, carried out by a grisly method known as "necklacing," occurred a few hundred yards (meters) from Jantjie's tidy concrete home, according to the cousin and friends, one of whom described himself as Jantjie's best friend. Necklacing attacks were fairly common during the struggle against apartheid, carried out by blacks on blacks suspected of aiding the white government or belonging to opposing factions. But while people who encounter suspected thieves in South Africa have been known to beat or kill them to mete out punishment, necklacing has been rare in such cases. An investigation is underway to determine who hired Jantjie for the Mandela memorial service and whether he received security clearance. Government officials have not said how long the investigation will take. Four government departments involved in organizing the memorial service have distanced themselves from Jantjie, telling the AP they had no contact with him. A fifth government agency, the Department of Public Works, declined to comment and referred all inquiries about Jantjie to the office of South Africa's top government spokeswoman, who has only said a "comprehensive report" will eventually be released.