welcome back to dateline. i'm andrea canning. it had been 12 years since the bird body of a young woman was found in excesses field. she was known only has lavender doe, i referenced or purple short. her true identity was a mystery. when that transfixed a team of amateur cold case sleuths. now, a stunning confession was about to send their mission into overdrive. here's keith morrison with "the woman with no name". >> it was hot that texas summer of 2018. the dna dough volunteers spent their time inside staring at their computer streams, trying to identify lavender doe. but they've hardly started, when kevin lord got a call from eddie hope. a young girl named felisha pearson had been reported