tonight at 10... three days away from the iowa >>> "20/20" continues. >> my name is amanda, and i've never met my father, and i want

sam skinner, had both submitted samples for dna testing. and so both of you took a dna test, right? >> yes, we did. >> reporter: and you have the results? >> i do. >> oy. let's see them. >> reporter: this is the second moment of truth for amanda, already let down by one ototr would-be father, excluded by dna. now, the results of the second man, sam skinner, with whom she and pam have bonded. >> i instantly liked him and i loved seeing samuel and amanda

>> i brought bennett here because it was important for me that you remain hopeful and optimistic. >> i know this is painful news, but t u have a lot to be hopeful fofo thousands and thousands of people are testing every month and they're adding their samples to the database. i think it's only a matter of time. >> i feel like i've been on this journey with y. i haha been. i will remain committed to you and getting to the bottom of this, i promise you.

and getting to the bottom of this, i promise you. biggest reunion of all, d.j. williams, also own as manger baby, is all set to meet -- for the first time in his life -- blood relatives. three half-sisters and a half-brother. and here they come, marching down the sidewalk and right into d.j.'s life.