Miguel Ángel Beltrán, a sociology professor at Colombia's National University, is being held in maximum security at a prison in Bogota.
There are now "agreements" on agrarian rights, illegal drugs, political participation, and victims.
President Maduro's socialist government is under siege from business-oriented right-wingers; voting on December 6 for National Assembly delegates will be a test of strength.
An inquiry in the context of the peace negotiations between the government and the FARC-EP guerrillas by a former political prisoner.
Colombian President Juan Manuel Santos announced a halt to peace talks in Havana between his government and the Revolutionary Armed Forces of Colombia.
Venezuelan National Assembly deputy Robert Serra and companion María Herrera were murdered on October 1 in Caracas.
Ravelo led the fight in Barrancabermeja, his home city, against right-wing paramilitary domination.
After reaching partial agreements on agrarian reform and political participation, negotiators tackled drug trafficking. But after five months of discussion, they recessed without an agreement.
Obando is a sociologist and documentary filmmaker. A week before her arrest, she issued a report documenting the murders of 1500 FENSUAGRO union members. FENSUAGRO is Colombia's largest agricultural workers' union.
Alliance for Global Justice, at the invitation of the Astracatol agricultural workers union of Tolima, Colombia, is organizing a Just Peace Coffee Brigade to help farming families bring in their coffee harvests.