Thanks for posting this. I had been thinking about this event the other day but had not had a chance to do a Google search yet.
While it appeared to me [from my memory of] the video, that the navigator ejected from the aircraft, somewhere on the Internet yesterday, I read that it was the Squadron Commander who had been in the co-pilot's seat, trying to get out of harm's way.
Unfortunately, his path was still in the way of the descending aircraft.
Major Kern's report does not mention the ejection attempt.