My hubby is deployed overseas and I'm tyring to send him some books I've read in the past that I think he'd enjoy. One of the books was about this cop, whose daughter I think was killed; he seeks revenge and begins killing criminals. He takes the body underwater and hides them in the upper part of the cave, where the water doesn't come up to. I know it's a stretch, but it is driving me insane! Thanks!

Would you recognize the title if you saw it? I did a search on a web site that
Does plot searches, using the information you supplied, and it returned 100
Results. Click on the title where it says, (click on a book below) at the far left, and it
Gives a plot summary. Here's the link:

AllReaders.com Book Search Engine

Best of luck.:)