Garcia from the Calle 18 gang and Aristides Umanzor, aka "El Sirra, " from the Mara Salvatrucha - each backed up by 15 of their top lieutenants - sought out a Catholic bishop and a former leftist congressman to serve as mediators.
Mother Margarida, an 82-year-old nun working with Nobel Peace Prize winner Bishop Carlos Belo, was at his house on Sept. 6 when militias backed by Indonesian troops attacked hundreds of refugees sheltering in the compound.