I am so sorry to hear about this. I think someone else needs to address why this might have happened and maybe some husbandry issues that may have influenced this outcome. In the meanwhile, maybe you could read: http://www.ball-pythons.net/forums/s...ad.php?t=56846
and this: http://www.ball-pythons.net/modules....warticle&id=59
and this: http://www.ball-pythons.net/forums/s...ad.php?t=30763
With this information you might be able to address some needs of your remaining snake.
I'm sorry again for this loss and feel encouraged that you posted and are looking for suggestions and help.... Take care