It's interesting because this has to be pretty conflicting for that man.
I mean, yes you do have memories at 6 as an adult...but really not many. I know he knew he was taken away from his family. But it says that they kidnapper interestingly raised him to being an adult. I wonder what that relationship between him and his kidnapper was like and if he felt that she had become his adopted mom or not.
Shame his real mother never got to learn that he was alive and well. I'm sure everyone assumed he died...as is what happens to most children who go missing.
No, it says the kidnapper gave him to another couple who raised him. The relationship of the kidnapper to those people, what they were told, etc is unclear.