An investigation tied military personnel under Gen. Mario Montoya’s command to the killing of civilians in attempts to inflate the number of insurgents.
The Drug Enforcement Administration has paid more than $3.3 million to informants in an investigation that led to the arrest of a man prosecutors called an international arms dealer.
The guerrilla group, the Revolutionary Armed Forces of Colombia, has sustained a string of blows that were caused by the seizure of its computerized data.