[inaudible] >> motivation for the ambush remains a mystery. police have no suspect but believes cartel members miss took the suvs for another cartel. others think it was intentional. >> right now i have a very angry heart as we're coming out of this with much rage because i'm mexican. i'm not going to leave my land just because they said they are going to come and kill me. let them come. >> the ambush comes as mexico becomes more unstable. 10 bodies discovered this weekend south of tucson in the resort city of rocky point. in chihuahua the city, 38 homicides in 30 hours. in juarez south of el paso 16 vehicles and buses set on fire to stop a prison raid. mexico says it will allow the f.b.i. to assist in the investigation in the attack on