I suspect the trust fund reverts to someone else when she dies...that's the point of a trust fund, among ot hers---to keep the guys who marry for money away from the $$ and reduce the temptation to homicide!
I will say, I called it, that the wife wasn't dead, but in a coma...but it seems as though he might have pulled the plug on her if not for the $$. Or maybe not... he said she was in and out of a minimally conscious state...what does that mean? Better than just lying there sleeping? Not a vegetable? Maybe she's too "alive" to kill? If he didn't care about her at all he wouldn't visit her, just collect the $$. Although I guess it pays to check on the health of your "investment".