[Will88]

I wonder if the DA Ray Gricar found out about the ring, and that’s the reason he wound up “missing.”

A definite possibility, and it is odd how they never learned anything about the circumstances of his death, or disappearance.

They found his car and an unreadable hard drive, but never found him? Is that right?

[okie01]

They found his car and an unreadable hard drive, but never found him? Is that right?

That's right.

And the fact that they found the hard drive and his laptop in two different locations on the river suggests that the hard drive was a target.