How positive are you that the one that wasn't moving was dead? Sorry for your loss if you're sure, but these little hatchlings freak me out a lot acting like they're dead even when I poke them, then all of a sudden they wake up and move a bit. Remember, they don't have eyelids and sleep just as much as other animal babies. I thought for sure there was a dead one this morning, took out the tub and poked - nothing... then I went to lift the baby up a bit and it woke up and looked like a grumpy baby.
Congrats on all of the definitely healthy ones! PICS!
It was 6 days ago, so I guess you're sure at this point. Still... I would not assume a baby is dead unless the whole animal was out of the egg and not flipping itself over from being placed on its back.