is tiffany hartley even telling the truth? or is there another secret yet to be told? 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. >> in his office in texas, county sheriff sigifredo gonzales says he 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. >> 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 has passed my mind, but i'm not willing to accept it in my heart. i know my god. and he is bigger than anyone and anything. and he -- he wants justice just as much. >> the cold reality, however, seen seens very different. on her website, bringdavidhome.com, there are plenty of

speculation began to swirl that tiffany hartley kill 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 called miguel alleman. his name, ronaldo villegas. his suspects, brothers, who lived near the half-sub merged church in mexico, old guerrero. it's unclear if he went looking for them, but only a few days after he identified

is tiffany hartley even telling the truth? or is there another secret yet to be told? ng, 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. >> in his office in texas, county sheriff sigifredo gonzales says he 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. >> 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 has passed my mind, but i'm not willing to accept it in my heart. i know my god. and he is bigger than anyone and anything. and he -- he wants justice just as much. >> the cold reality, however, seens very different. on her website, bringdavidhome.com, there are plenty of people who still believe sh