César Uribe Rúa, President of SUTIMAC, was murdered. The CUT and FENALTRACONCEM denounced those murders and disappearances to the Mayor, the Governor, military and police authorities, and national authorities. In those letters to national authorities, they reported that "the members of a paramilitary group comprising about 30 individuals and calling itself "Autodefensa Popular" was continuing to sow terror and confusion..." Thus, the CUT and FENALTRACONCEM asked for an end to the criminal policy against workers and for an investigation to be carried out. They also requested the withdrawal of the Army patrols billeted in Puerto Nare and “Montañitas”, in the department of Antioquia. 93. Likewise, a report of the National Center for Historical Memory refers to the persecution and extermination of members of SUTIMAC's Puerto Nare branch. The report states: (…) in the Antioquia region of Magdalena Medio, in 1986 and 1987, the vast majority of SUTIMAC members were murdered or disappeared by paramilitary groups operating with military units billeted in the region. Indeed, SUTIMAC was practically banished from the municipality of Puerto Nare, due to the murder, forced disappearance, and internal displacement of most of its trade union leaders and activists.65 94. The aforementioned report cites numerous murders of members of SUTIMAC and Sintracolcarburos between 1986 and 1989,66 most of them attributed to paramilitary groups and, specifically, the group known as MAS. It points out that several of these people also had ties to the UP.67 As a matter of particular relevance to the instant case, the Commission notes that, according to that report, several of those deaths and disappearances took place in circumstances that suggest joint actions and collaboration between the paramilitary groups and the State security forces, that is, when persons were formally held in installations run by the State's security forces or close by.68 95. Some examples of the situation cited in the National Center for Historical Memory's report entitled Huellas y Rostros de la Desaparición Forzada (1970-2010) are: i)Luis Antonio Gómez, handed over on January 11, 1987 to alleged paramilitary groups by the police at the police station in La Sierra in the 65 Huellas y Rostros de la Desaparición Forzada (1970-2010). Volume II National Center for Historical Memory. Case 4. Víctor Manuel Isaza Uribe: Desaparición Forzada y Represión Antisindical. Available at: http://www.centrodememoriahistorica.gov.co/micrositios/desaparicionForzada/libros-tomo2.html. 66 Huellas y Rostros de la Desaparición Forzada (1970-2010). Volume II National Center for Historical Memory. Case 4. Víctor Manuel Isaza Uribe: Desaparición Forzada y Represión Antisindical. Available at: http://www.centrodememoriahistorica.gov.co/micrositios/desaparicionForzada/libros-tomo2.html. The murders and/or disappearances cited are: Julio César Uribe Rúa, President of the Nare branch of Sutimac and of Sutimac Nationwide, a Unión Patriótica activist and council member of Puerto Nare, on December 8, 1986; Luis Antonio Gómez on January 11, 1998; Gonzalo Madrigal who was trying to find his brother-in-law Carlos Darío Zea, a trade union leader, on February 4, 1987; Marcial González, a worker at Colcarburos, a relative of the same trade union leader, on February 5, 1987; Jhon Alberto Montoyaon March 7, 1987; Jesús Antonio Molina, trade union leader of the Nare branch of Sutimac, on March 9, 1987; Alfonso Miguel Lozano Pérez, a leader at Sintracolcarburo and member of Unión Patriótica, on March 30, 1987; Jorge Alberto González Uribe, brother-in-law of a leader at Sintracolcarburo on May 5, 1987; Ignacio Bedoya, a member of the Nare branch of Sutimac, on August 8, 1987; Pablo Emilio Córdoba Madrigal,a Unión Patriótica council member, a member of the executive board of Sintracolcarburo and a Sutimac leader; Gustavo Jesún Callejas and Héctor Alonso Loaiza Londoño, activists in Sutimac and workers at the Cementos Nare company; Carlos Arturo Salazar and Darío Gómez, trade unionists at Cementos Nare and Unión Patriótica activists, on January 19,1988; Jesús Emilio Monsalver Mesa, trade unionist in the Nare branch of Sutimac and Unión Patriótica activists, on January 24, 1988; Juan de Jesús Grisales Urrego, a member of Sutimac and watchman at Cementos Nare, on February 3, 1988; Héctor Julio Mejía, trade union leader at the Nare branch of Sutimac, on February 8,1988; Jesús Anibal Parra Castrillón, director of the Nare branch of Sutimac, on March 28, 1988; León de Jesús Cardona Isaza, National President of Sutimac and member of Fenaltraconcemand of Unión Patriótica, on August 30, 1988; José Manuel Herrera, member of the organization committee of the Cementos Nare trade union,affiliated toSutimac, on September 4, 1988; Carlos Alfonso Tobón Zapata, member of Sutimac, on January 28, 1989; Juan Rivera, machinist at Colcarburos and Vice President of Sutimac on August 12, 1989; and Luis E. Durán, a worker affiliated to Sutimac, on September 29, 1989. 67 Huellas y Rostros de la Desaparición Forzada (1970-2010). Volume II National Center for Historical Memory. Case 4. Víctor Manuel Isaza Uribe: Desaparición Forzada y Represión Antisindical. Available at: http://www.centrodememoriahistorica.gov.co/micrositios/desaparicionForzada/libros-tomo2.html. 68 Huellas y Rostros de la Desaparición Forzada (1970-2010). Volume II National Center for Historical Memory. Case 4. Víctor Manuel Isaza Uribe: Desaparición Forzada y Represión Antisindical. Available at: http://www.centrodememoriahistorica.gov.co/micrositios/desaparicionForzada/libros-tomo2.html.