I suspect this is an edited tape. We don't hear the initial contact which would have included the known details about the pilot in the left seat. A couple other thoughts: At the beginning of the flight there were 5 Souls on Board. If the pilot flying was sure that their were now only 4, he didn't let on. I don't know if it came up here, but the other three were the remaining pilot's wife and two daughters. That didn't change anything in the remainder of the flight. As usual, the media reports I heard pulled about 5 seconds out of the tape and made him sound somewhat less under control than we hear in this version.
Could I do it?, Oakfloor is right.
Glenn