we told you last half hour about eduardo ravelo.exas gang leader and a hit man for a mexican drug cartel. correspondent richard lui, another man with ties to mexico just made the list as well. >>> that's right. joe saenz is trafficking drugs across the border. he first got on their radar in 1998 when he allegedly killed two rivals of his gang. saenz was out of sight for a decade but police spotted him on a surveillance v at a murder scene. >> if you look at the video, he's rubbing his hands before he goes in the house and he's smiling. it looks like he really enjoys what he does. he enjoys killing people. >> in addition to the gang-related murders investigators say saenz kidnapped, raped and murdered the mother of his child, robin, because he thought she might turn him in. >> it sounds -- just like a despicable person here. so what are the chances that authorities will be able to track down these guys now that they're on this top ten list? how much of a difference does it make? >> if you're a criminal you don't want to be on this li

we told you about eduardo ravelo. gang leader and a hit man for a mexican drug cartel. correspondent richard lui now. so another man with ties to mexico just made the list as well. >> that's right. from those openings that just came open. joe saenz. he's trafficking drugs across the border now. but he first got on their raid nar 1998 when he allegedly killed two rivals of his quat row flats gang. saenz was out of sight for a decade but police spotted him on surveillance video last year at a murder scene. >> if you look at the video you know, he's rubbing his hands before he goes in the house. he's smiling. it looks like he really enjoys what he does. he enjoys killing people. >> an idea there of who he might be. >> in addition to the gang related murders, saenz, kidnapped, raped and murdered the mother of his child because, robin, he thought she might turn him in. >> so frightening. you know, the fbi says that this guy has been involved in gangs for at least 15 years. that's a long time. why has it been so hard to cat