yeah, for tina. >> that was a good moment for us. >> mcvay, come on up. >> reporter: tim mcvay pleadedied bail and put in the county jail. that's where "dateline" found him for his first television interview. >> i did not kill carrie. and i did not dump her body. >> reporter: tim said the wrong guy was behind bars, pointing to the fight carrie told him that she and justin had that saturday morning. >> reporter: did she say what the fight was over? >> romantic issues. i guess that'd be the best way to put it. >> reporter: of a sexual nature? >> that was my impression, yes. >> reporter: and then what happened after that? >> there was some throwing. a couple of things had gotten broken. there was a little bit of a physical altercation between the two of 'em. >> reporter: tim said the last time he saw carrie was when he drove her back to her house, just before he went to the airport. >> she was walking into the garage at her house -- alive, happy, as well as could be. >> reporter: tim said he still loved carrie, even though they'd broken up. but how could he explain the seemingly damning l