Don't know about that one. BUT, we do know that two or three hours after Terri died, Michael and lawyer Deborah Bushnell raced to court to file papers claiming her estate. How Michael managed to conquer his racking grief long enough to ransack Terri's estate, I can't conceive. Could that have been the subject of the thread you heard?
Insurance did figure in the story early. IIRC, Terri received generous sick benefits from her employee health policy working for Prudential. Michael lived off her insurance for a year (I think it was) until the benefits ran out.
You'd think he'd at least wait until her body was cold. If nothing else, but for publicity sake.
I'm gonna search for the insurance story and see what I come up with. Will ping you if I find something.