E/CN.4/1993/26 page 33 (f) Samuel Fernando Rojas Motoa, a member of the executive committee of the United Workers Organization (CUT) in Valle del Cauca and of the Cartago municipal workers' union was taken from his home on 4 June 1992 by members of the intelligence unit (B-2) of the Ayacucho battalion stationed in Manizales, Caldas, and driven to the Ansema military base where he was tortured, threatened with death and subjected to a mock execution. He was then taken to the San Mateo battalion in Pereira, Risaralda, where he was again questioned, threatened with death and not allowed to sleep; (g) José Delfin Torres Castro, police inspector at Tabeta, El Cerrito, Santander is reported to have been tortured on 9 June 1992 before being executed by a military patrol belonging to the García Rovira battalion; (h) Oscar de Jesús Silva Gutiérrez, a member of the committee for solidarity with political prisoners and a student leader, was detained in Cali on 1 May 1992 by members of the national police who beat and threatened him; (i) Gabriel Flores Oviedo, chairman of the national association of peasant land users and a member of the Chucurí human rights organization was arrested by soldiers on 22 June 1992 at Montebello, San Vicente de Chucurí, Santander. He was tortured while under interrogation. 113. The Special Rapporteur also received information concerning the case Mrs. Yolanda González Villamar, an inmate of the Good Shepherd National women's prison who died of a heat attack on 8 February 1992. According to information received, Mrs. González Villamizar had been in poor health but not been allowed to leave the prison to obtain proper hospital treatment. received little or no medical care in prison. of the had She 114. In conformity with resolution 1992/59, "Cooperation with representatives of United Nations human rights bodies", the Special Rapporteur made an urgent appeal to the Government in connection with information received concerning the cases of César Chaparro Nivia, a trade unionist and member of the Patriotic union, and Vladimir Hincapié Galeano. On 29 February 1992 the two men were arrested by members of the administrative security department in the Kennedy district of Bogotá and taken to the department's premises. During the arrest Mr. Chaparro Nivea was hit by bullets. At about 5 p.m. Mr. Hincapié Galeano was admitted to the San Juan de Dios hospital with injuries reported to have been caused by torture. At 12.35 the next day Mr. Chaparro was also admitted to the hospital. According to witnesses both men were constantly guarded by security department agents who prevented them from communicating with their families. Mr. Chaparro, who died on 4 March, told a nurse that he had been tortured and asked her to inform the public prosecutor's office. On 18 March at 6.30 p.m. his wife, Margarita Agudelo Alzate, and her brother, Hernando Agudelo Alzate, received death threats from an anonymous telephone caller. The threats are reported to have been prompted by the family's complaint to the public prosecutor's office concerning Mr. Chaparro's death.