$4,000, shoot everybody. four of the victims die. the man and his two daughters for a $5,000 robbery. this is something that tore apart this community. they're still devastated by it. the execution by these two guys. they believe they were probably of mexican heritage because it's near the border. i'm never going to give up on this case, because there are so many victims impacted, and three of the people survived the shooting. >> yet they've never been able to find them. >> any good tips, and you know, anderson, i believe you never give up. this community is still hurting, and wants justice. >> the killers in this case apparently told everyone that if they cooperated that they would survive. and that wasn't obviously they were lying. >> they duct taped little girls. >> what do you advise somebody in a situation like this? >> there's something you can do except comply with the demands of the bad guys. they come in, they have the guns.