. >> reporter: it was barbara richardson's mom and dad who raised diane, taking her in when she was just four months old, not for profit, but out of kindness, barbara says. >> they loved me, and they treated her the same as they treated me. so it sounds like love to me. >> reporter: eric richardson is barbara's son. something that could've happened in the hospital to well, maybe this was some kind of conspiracy in which my grandmother was involved, that kind of to me crossed the line. >> reporter: in fact, the richardsons have a starkly different version of events right after diane was born. >> when it was time to be released, no one had been to see the child and no one came, you know. she was an abandoned baby. abandoned at birth. >> reporter: abandoned at birth? and take a look. old records from hospital social workers confirm it, saying diane was abandoned by her mother, zella jackson. but the richardsons have more to reveal, saying that when diane was 9 years old, her foster mom made it a point to find diane's biological mom, and even had a name to start the search. >> she found a ze