In April 1991, Arturo Sanhueza Ross, linked to the murder of MIR leader Jecar Neghme in 1989, left the country. According to the "Rettig Report," Jecar Neghme's death had been carried out by Chilean intelligence agents. In September 1991, Carlos Herrera Jiménez, who killed trade-unionist Tucapel Jiménez, left by plane. In October 1991, Eugenio Berríos, a chemist who had worked with DINA agent Michael Townley, was escorted from Chile to Uruguay by Operation Condor agents in order to avoid testifying in the Letelier case. He used Argentinian, Uruguayan, Paraguayan and Brazilian passports, raising concerns that Operation Condor was not dead. Berríos was found dead in El Pinar, near Montevideo (Uruguay), in 1995. His body had been so mutilated to make identification by appearance impossible.