On Tuesday 24 March 1998 Calarca was arrested by in Bolivia by the Bolivian police at the airport of La Paz.
The FARC claimed that these four hostages were spies involved in counter-insurgency operations aiding the Colombian military.
[2][3][4] Calarca and other members of the FARC left Mexico on 17 April 2002 with Cuba or Venezuela as presumed destinations.
[5] Calarca became part of the "thematic committee" during the FARC-Government peace process (1999-2002) along with other members of the FARC; Iván Ríos (coordinator), Mariana Páez, Domingo Biohó, Felipe Rincón, Julián Conrado, Gabriel Angel, Fidel Rondón, Bayron Yepes and Pedro Aldana.
[6] The government of Colombia is offering a reward of COP$1500 million pesos for his capture or killing through the Interpol services.