speculation began to swirl that tiffany hartley kill her husband for insurance money, or even that tiffanyg another man. >> people still have a hard time believing you. does that hurt you? >> some days. other days -- they don't have room to judge. i mean, they don't know me. they don't know my husband. they weren't there that day. so really they have no room to judge me. >> reporter: with television and newspaper attention still at viral levels, authorities in texas were trapped. they could dispatch all the boats and helicopters they wanted, but law enforcement in mexico was still in charge. and what happened next in mexico showed just how difficult getting any answers would be. >> one mexican detective did try to find out what happened to david hartley. but his head was severed from his body and his decapitated head delivered to the mexican police here. since then, little news. suspects, brothers who lived near the half church in mexico, old guerrero. it's unclear if he went looking for them, but only a few days after he identified the brothers by name, the detective was dead. a clear war

is tiffany hartley even telling the truth? or is there another secret yet to be told? ter: after all the searching, all the investigation, texas authorities say they could not find the body of david hartley. >> where is the body? >> the body was disposed of. there is no body. >> this is the international boundary. >> yeah. >> reporter: in his office in texas, county sheriff siggy gonzalez knows for a fact that david hartley will never be returned to the united states for burial. do you know how? >> yes. four different sources with different agencies have come forward and told us how they disposed of the body. >> reporter: those sources say the body of david hartley was placed in a barrel and burned. in colorado where she now lives, tiffany hartley refuses to believe her husband's body will never be returned. >> it's passed my mind, but i'm not willing to accept it in my heart. i know my god and he's bigger than any one and any thing, and he wants justice just as much. >> reporter: the cold reality, however, seems very different. on her website, "bring david home dot com

speculation began to swirl that tiffany hartley killed her husband for insurance money or even that tiffanyanother man. >> people still have a hard time believing you. does that hurt you? >> some days. other days -- they don't have room to judge. i mean, they don't know me. they don't know my husband. they weren't there that day. so really they have no room to judge me. >> reporter: with television and newspaper attention still at viral levels, authorities in texas were trapped. they could dispatch all the boats and helicopters they wanted, but law enforcement in mexico was still in charge. and what happened next in mexico showed just how difficult getting any answers would be. >> one mexican detective did try to find out what happened to david hartley. but his head was severed from his body and his decapitated head was delivered to the mexican army here in a border town. his suspects, brothers who lived near the half submerged church in mexico, old guerrero. it's unclear if he went looking for them, but only a few days after he identified the brothers by name, the detective was dead. a cle

speculation began to swirl that tiffany hartley killed her husband for insurance money or even that tiffanyanother man. >> people still have a hard time believing you. does that hurt you? >> some days. other days -- they don't have room to judge. i mean, they don't know me. they don't know my husband. they weren't there that day. so really they have no room to judge me. >> reporter: with television and newspaper attention still at viral levels, authorities in texas were trapped. they could dispatch all the boats and helicopters they wanted, but law enforcement in mexico was still in charge. and what happened next in mexico showed just how difficult getting any answers would be. >> one mexican detective did try to find out what happened to david hartley. but his head was severed from his body and his decapitated head was delivered to the mexican army here in a border town. his suspects, brothers who lived near the half submerged church in mexico, old guerrero. it's unclear if he went looking for them, but only a few days after he identified the brothers by name, the detective was dead. a cle

speculation began to swirl that tiffany hartley killed her husband for insurance money or even that tiffany seeing another man. >> people still have a hard time believing you. does that hurt you? >> some days. other days -- they don't have room to judge. i mean, they don't know me. they don't know my husband. they weren't there that day. so really they have no room to judge me. >> reporter: with television and newspaper attention still at viral levels, authorities in texas were trapped. they could dispatch all the boats and helicopters they wanted, but law enforcement in mexico was still in charge. and what happened next in mexico showed just how difficult getting any answers would be. >> one mexican detective did try to find out what happened to david hartley. but his head was severed from his body and his decapitated head was delivered to the mexican army here in a border town. his suspects, brothers who lived footsteps. >> one detective did try. >> we understand that he did try, yes, and -- >> reporter: he was executed. >> i asked if he was perhaps executed because of being involved in d

the wild west, two young americans, david hartley and tiffany young, just teenagers when they fell in love. >> we started dating in '98. the summer of '98, and dated for quite a while before we got engaged in 2001 and married in 2002. >> what took so long? >> we were 18. >> reporter: they wound up here, in the mexican border town of reynosa, jut south of mcallen. he was a district manager for an oil company. >> it was a blessing to us and our marriage. yeah. we were -- that's where we truly grew as a couple and had adventures. >> reporter: when the hartley's first arrive here this peaceful town was a perfect place for the young couple to live, but slowly it became more and more violent. there is a war in reynosa. two drug cartels battling for turf. the zetas, a rogue band of former military are trying to