they're resilient and they can survive horrible circumstances as i'm robin gardner.ghbor, and he said, i am so sorry if this upsets you, but there's a girl that's missing and they have checked on worley's house. we've seen at least six fulton county deputies here, along with the ohio state highway patrol. i was shocked, cried a lot. it was a very difficult process for me to go through. >> a couple of days after sierra had gone missing, we started looking into mr. worley's past and saw that he had a very similar occurrence 26 years earlier. he tried to abduct a young lady riding her bicycle. >> this was almost, if not identical to what happened to sierra. >> it was a summer of 1990. robin gardner was 26 years old and living with her mom in white house, ohio, just 20 minutes from where sierra lived on july 4th. >> my mom was making potato salad and getting ready for the neighborhood picnic that we all did every year. it was noon and i got bored easily. so i said, i'm just going to go for a bike ride. and i got on my bike and took off. that's me. when i first got the bi