Greed and spite on both sides.
A sordid family squabble...and quite a public squabble locally.
Most people nationally were unaware of this case prior to 2000. They didn't know it was probably all spite over the settlement money.
I followed the story since her collapse 15 years ago.
I live in Pinellas County.
Assuming both sides were greedy and spiteful, that leaves the fact that one side wanted to care for her, and the other wanted her dead so he could continue on with his shackup. Looking at motives, it's clear MS had personal reasons for wanting her dead, the parents had none.