The video can be seen in full where they announce the man people claim is David Rockefeller.
The meeting with Eliezer, or as some falsely claim--David Rockefeller is at 16:12. The name is clearly said. The Youtube video is on the official page of Yad Vashem.
The English translation of the event is found here, where you can read for yourself what is said about Eliezer Grynfeld.