A horrifying story. He said i grabbed her this. An old case blown wide open. I said, we cant let this go. Two women teaming up for the truth. If they think i walk away, theyre m uncov twist. Attached was a photograph of heidi allen. It had a code name, Julia Roberts. A teenager with a secret identity. Did she also have a secret enemy . Theyre going to want to shut her up, permantl im lester holt. And this is dateline. Heres Dennis Murphy with the informant. Reporter tonya priest never wanted to be a star witness, least of all in a longago abduction and murder investigation. But after that guy blurted out what he did, she felt she had to come forward. Would you live with it . Could you live with al reporter and she found herself on the phone talking to a district new york. I know the truth, sir. Reporter tonya bel knew whod done it. Whod done that terrible thing at the convenien easter sun ago. That store clerk abducted never seen again. And it probably only took maybe 60 seconds to do