What ate one of hermit crabs?

[recliner]

I just found a chunk of hermit crab. All that was left was 3 little legs and his 2 small pinchers and a little bit of flesh. The only thing I have that I think would eat it is a purple lobster. With his claws stet he'd out in front to the tip of his tail he is about 6". Am I right thinking he is the killer?
The rest of my livestock:
Clowns, tomni tang, falco hawkfish, chromis, elibi angel, Sleeper banded goby
5-6 emerald crabs, chocolate starfish, Blood red shrimp, and lots of snails..

Listing everything off made me realize I haven't seen my other starfish in a while. It was about 1.5" across, red and was kind of bristly. Also it seems like I have fewer snails then I used to.

With the missing 2nd starfish, maybe my chocolate chip star is the killer. I'd prefer him because at least he's easy to catch and remove.

 

[little_fish]

Hawkfish are well known for eating inverts, but it could have also been a molt

 

[recliner]

Oh no! Not Hank! (my hawkfish)

It wasn't a molt, there was a lot of flesh and meat still attached to the legs and claws. I was really hoping it was the chocolate chip star cause he'd be easy to remove. So the lobster isn't a good suspect?

 

[ErinCahir]

My money would be on either the lobster or the hawkfish, like Hannah said.

 

[recliner]

I'd love to get rid of the lobster. Any way to get him with out removing 200 pounds of live rock and coral from my tank?

 

[Kelz88]

I have a falco, he is one nasty little booger. Ate my surprise royal gramma on me lol. I have no clue how you are going to get the lobster out though, best of luck.