Arias had a vast knowledge on the people living in the commune , which allowed him to recruit members for murder-for-hire . For instance , the first assassination ordered by the Medellín Cartel , i.e. , the assassination of Rodrigo Lara , was delegated to him , who then hired Byron de Jesús Velásquez , Iván Darío Guizao Álvarez and the other member of the gang to commit such assassination in 1984 . Pinina had participation in almost every criminal act ordered by the Cartel : the assassination of the minister Rodrigo Lara , the assassination of the El Espectador director Guillermo Cano Isaza in 1986 , the bombing on the El Espectador building in 1989 , the assassination of the Police Colonel Jaime Ramírez Gómez in 1986 , the kidnapping and murder of Carlos Mauro Hoyos in 1988 , the murder of the Antioquia governor Antonio Roldán Betancur in 1989 , the assassination of the Police Colonel Valdemar Franklin Quintero in 1989 , cooperation with the arrangement of the DAS Building bombing in 1989 ( left 52 dead people and at least 600 wounded ) , involvement in the bombing of an Avianca airplane on 27 November 1989 ( 110 dead people ) , participation in the killing of many police men as well as the assassination of the magistrate of Colombian Supreme Court Hernando Baquero Borda in 1986 , participation in the assassination of the presidential candidate Luis Carlos Galán in 1989 as well as being involved in the war between the Medellin Cartel and the Cali Cartel and other criminal acts such as car-bombings
DAS Building bombing
DAS Building bombing
John Jairo Arias Tascón 'Pinina'