Drug war raging in Medellin , Colombia , has seen almost 2,000 killings this year . But the `` office '' has been ripped apart by infighting . Gang leader says violence sparked by power vacuum as old bosses arrested . Comment: But he refuses to say which cartel boss is bankrolling his gang .
Drug war raging in Medellin , Colombia , has seen almost 2,000 killings this year . Gang leader says violence sparked by power vacuum as old bosses arrested . Comment: But he refuses to say which cartel boss is bankrolling his gang .