help with removal of huge Eunice Worm

[corpusse]

Burn your house down, collect the insurance and start again.

Really a trap is your best bet. Maybe put a pvc pipe with some holes drilled in it and some shrimp or fish or something smelly in just after lights out. Watch with a red flashlight. If you have a spot large enough on your sandbed / bottom that is away from the rock that would be ideal because for all you know he's 8 feet long and you've only seen 2 feet of it.