We're talking about it here and that's what we all think -- that he did something to her to put her in this state, and he doesn't want her recovering enough to shout one day, "HE DID THIS TO ME!" He'd be in the lockup like Scott Peterson.
It is the only thing that makes sense--why else would Schiavo have refused the 10,000,000, an opportunistic lowlife like him?
He belongs on the gurney next to Peterson and they can share the same needle.
If Peterson ever makes it to that gurney...