Are claiming that Jake passed the manikin over the top of the seats to Yamamoto? Why? In fact, why not put the manikin in the empty ninth seat which was right by the back door?

Asking distracting, nonsensical and irrelevant questions that have nothing to do with your claim of being a "fact", is out of order, despite how it may be part of the "game" you've claimed you're playing on this thread.
Why edit out the cabin portion of a video that you give to the NTSB as if it was intact?