Luckily I've already gotten some babies off this one and some cuttings so I'm not at a loss, but I'm just curious what did the damage?
See through worm seemed to be the most likely culprit I found in the pot. They were everywhere under the dead leaves.
I also had these maggots in the soil nearby as well.
After removing the dead rosettes I found a huge set of roots, looks like they didn't damage those. I sprayed with Neem. Do you think its likely to come back alive from these roots?