thanks to his determination and social media, richard santiago was reunited with his mom, and only on 4, megan fitzgerald was there to see it. >> reporter: from the outside looking in -- >> traveling, bowling, fishing. >> really anything that involves being together. >> reporter: -- it seems like richard santiago and his wife fran have it all, but this couple will be the first to tell you that no one's life is perfect. >> it's a loneliness that i can't describe. a monumental hole. >> reporter: as a child, richard was in foster care before being adopted by what he describes as an abusive woman. for his entire life, he's been searching for a connection to his past. >> and me, you know, trying to find my family for 40 years, you know, and i was always looking around, man, where's my mother, where's my father? >> reporter: for years richard through documents and records online. >> keep having searches that made it such a difficult task, but, yeah, every time he got ready to give up, why are you giving up? hang in there. you don't know what's going to happen. >> reporter: what happened thr