Pictures show the remote lair where four kidnapped Americans were taken after being seized in a bloody ambush that left three people dead.
The four had entered Matamoros, across from Brownsville, Texas, USon Friday, travelling in a white minivan with North Carolina license plates when cartel gunmen opened fire on their vehicle in the gang-war hotspot.
Two of the Americans, who have been identified as Zindell Brown and Shaeed Woodard, were killed along with a Mexican member of the public hit in the cross fire.
