Belt Flap News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> tom kolman had been found dead in his car, with his shirt loosened and his belt buckle undone. at the time, investigators didn't give his appearance much thought, but almost a year later, it became crucial to the case. >> we got a dna report back from the lab that indicated there was an unknown male's dna on the inside of the belt flap of mr. kolman near the belt buckle. >> did you test this dna against gilberto nunez? >> yes. it was -- >> was there a match? >> not -- it was not his. >> no match? >> no match. >> where do you go from there? i mean, that is a -- >> that's a show-stopper. noth...

Thought, but almost a year later, it became crucial to the case. >> we got a dna report back from the lab that indicated there was an unknown male's dna on the inside of the belt flap of mr. kolman near the belt buckle. >> reporter: did you test this dna against gilberto nunez? >> yes. it was -- >> reporter: was there a match? >> not -- it was not his. >> reporter: no match? >> no match. >> reporter: where do you go from there? i mean, that is a -- >> that's a show-stopper. nothing moves in this investigation unless we can determine who that is. >> an unknown john doe. and that's a problem for...

>> we were angry. we were sad. but you know, you -- we've lost a son. nothin's gonna change that. but we just wanted answers. >> reporter: investigators wanted answers too. but when the d-n-a results came back, a new question was at the center of the case. >> that was not only important, that was a showstopper. coming up -- the new evidence. >> there were there was unknown dna on the belt flap. >> would it clear gil? >> it's not possible he would do anything of that nature. >> when the good husband continues. >> when the good husband continues. (man) ah! (burke) smart dog. with farmers crash...

Responding law enforcement. now back to "dateline." responding law enforcement now back to "dateline. >> reporter: tom kolman had been found dead in his car, with his shirt loosened and his belt buckle undone. at the time, investigators didn't give his appearance much thought, but almost a year later, it became crucial to the case. >> we got a dna report back from the lab that indicated there was an unknown male's dna on the inside of the belt flap of mr. kolman near the belt buckle. >> reporter: did you test this dna against gilberto nunez? >> yes. >> reporter: was there a match? >> not -- it...

>> reporter: tom kolman had been found dead in his car, with his shirt loosened and his belt buckle undone. at the time, investigators didn't give his appearance much thought, but almost a year later, it became crucial to the case. >> we got a dna report back from the lab that indicated there was an unknown male's dna on the inside of the belt flap of mr. kolman near the belt buckle. >> reporter: did you test this dna against gilberto nunez? >> yes. it was -- >> reporter: was there a match? >> not -- it was not his. >> reporter: no match? >> no match. >> reporter: where do you go from there? i...