My personal guess is that there are many people in power who will be embarassed by what an investigation shows. It would be much nicer for them if the Terri-Albatross that's been hanging around them would just go away. I think some of them are starting to realize that if the story breaks, it will look much better for them if they're on the side of Terri's life than if they're on the side of her murder.
Human greed and selfishness can be amazing. But then, so can human kindness and selflessness...like the people on FR who have kept fighting so hard. I'd hug all of ya if I could! So, consider yourselves hugged.