Transcript for 'I have waited for 70 years to see you,' says Holocaust survivor during emotional reunion with his family

Whenever I move yeah. Yeah. This reunion between. At. LE Allen his nephew who came immediately to meet him. From Russia when he when the revelation was made. Happened thanks to the information that that they found. Vidalia I was grandson found on yet sends. Central database of child victims' names it's an unbelievable thing to witness something like this I feel as sand and employee event December. That this is one of the last opportunities that that will have to witness something like this affect what kind of touching piece of history. He would go we came upon. Testimony page. You have a sham that distrust rug that is they would rather vote Vick. He's right singing he's handwriting. In rats and that my the grandfather and yes that is nickname he's had died during the war are. And we look at day date and he 2005. And I immediately. Thought well. So he was eighty tool. He's like less than 95 now there is none to get a check that he's still alive and there is a telephone number on the page. India based human need to work few minutes and the underlying then we realized. He realizes school we are. And we realize that he's the son. And sun. Voting died during 2011. Engage they gate. It was a shock shop for office up for pain he did and I think he didn't sleep that night he opened the FaceBook page had been at this spot. And cheap and I was his only friend. And and any but they can and empathy Duncan and his scope. About.

This transcript has been automatically generated and may not be 100% accurate.