>> reporter: and in houston, the biggest reunion of all, d.j. williams, also known 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 d.j.'s life. d.j.'s first hug -- and it's a long hug -- goes to rose, then katie, robert, and finally kirsten. for the first time since he was left alone in a church 44 years before, d.j. is in the arms of the biological family he never knew. >> so what are you thinking? >> you look like our uncle john. reporter: but amid the joy, there is tension as well, because d.j. now has to tell them the story. they have no idea he was abandoned, left in a manger alalone. now he tells them what their mother did.

answers. >> reporter: amanda holdiness' search for her biological father mississippi to a false lead and crushing disappointment in florida, to new orleans where a prospective new father has been located. and now her search brings her to new jersey, and the home of investigative genealogist pam slaton. >> her biological background. >> reporter: pam brought along founder bennett eenspan. amanda and her possible father, 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 resus? >> i do. >> okay. let's see them. >> reporter: this is the second moment of truth for amanda, already let down by one other would-beather, excluded by dna. no the results of the second n, sam skinner, with whom she

>> i brought bennett here because it was important for me that you remain hopeful and optimistic. >> i know this is painful news, but you have a lot to be hopeful r. thousands and thounds of ople are testing every month and they're adding their samples to the database. i thk it's onlnly a matt of time. >> i feel like i've been on this journey with you. i have been. i will remain committed to you and getting to the bottom of this, i promise you. >> reporter: and in houston, the biggest reunion of all,