I don't think we can rely on any of the info that we hear or see in the media.
Even if a transmission was made, we can't be sure the other bloke heard it. Not hearing it doesn't mean it wasn't made. We don't really know when or how the deceased pilot died or whether the other one survived. Can we say for certain that the chap seen from the back on the news was actually the other pilot - or even a pilot at all?