About 2 weeks ago I picked up a baby Irian Jaya Carpet Python from LLLReptile at the Reptile Super Show in San Diego CA. I had him set up in a 20 gallon tank, rock hide, water bowl, coco husk substrate, large worm wood climbing branch, and silk plants for cover. Temperatures were 87-79 (warm side-cool side) and humidity was maintained at 75-50 (right after spraying - right before spraying). I left him alone for the first week, just spraying and changing the water. On sunday I held him the first time. He was very jumpy, lots of S-Curves in the neck, but he never actually tagged me. Once I got him out he calmed down a bit. Still jumpy, but not so many defensive displays. On Tuesday I fed him for the first time, and he took the fuzzy readily. I left him alone until Thursday when I brought him out again. He was still jumpy, but bringing him out wasn't quite as stressful as the first few times. Friday, I went back to feed him again. The first fuzzy I gave him was roughly equal to his width, and I've read that pythons are more suited for prey items slightly larger than their bodies. When I found him in the cage, he had passed.. Temps and humidity still read as they always did. Nothing else had changed. There was substrate packed into his mouth, and his jaw and neck were rigid. The muscles were locked. The rest of his body was completely limp. He was partially buried in the substrate, which was odd as I had never seen him under the substrate before. I took my other snake to the vet that day just to have him examined if anything had been passed to him. Snakey checked out fine luckily. My vet thought it might have been a neurological virus that Jacket had from the breeder. I spoke with LLLReptile and they were just as baffled as we were. She said his temps were a bit low, but seeing as he ate just fine on Tuesday that he was doing ok with that. So LLLReptile has agreed to give me store credit for half of what I paid for Jacket. I may pick up another baby, or just wait until the LA Pet Fair in august, and pick up an adult as I will have the larger enclosure prepared by then. Sadly I did not have very much time with Jacket.. I was planning on getting him his general vet check-up and fecal done soon as I could be sure he wouldn't attack the vet. I can't help but wonder if I made a drastic mistake somewhere.. I really just want to know what happened. If anyone has any ideas, I would greatly appreciate it.