aware at this point this is likely a group of possible drug smugglers as to, say, just people crossing the border? >> yes. griff: okay. so now you believe that agent martinez would have come across the highway and possibly down here? >> yes. griff: tell me what you think happened next. >> is he going to come and look for any dirt area where he can pick up what we call the sign again, the footprint. imagine that you have got your flashlight, you're cop sen trading, trying to find these footprints nut ground. you are very, very vulnerable to anything that might be around you where somebody could be hiding based upon the injuries that agent martinez sustained, we believe that as he was looking for these footprints, this group of drug smugglers attacked him and ambushed him and he succumbed to his injuries which were who are risk injuries. it looks like he was literally beaten to death.