yellowmargin eel dead

[newsalt]

Can someone tell me what might have happened?
I just got this guy yesterday. My LFS is great, always has the best fish. He started convulsing and biting himself. About midway down his body a little white thing was sticking out. I thought it might be a bristle worm. When I grabbed the white thing and pulled it was just crap (literaly). He has no ick, or other signs of parasites. Any ideas

 

[tankstolove]

Could of been a skin fluke. Although most likely not the cause of death.