I have no confidence regarding Terri's ending here because so many questions seem to be up in the air here regarding her current and past condition and attempts at recovery.
The autopsy might put some of this to rest or create a whole new list of questions.
For me, Greer shows the need to reign in the judges of courts. Congress can do that and the people staying on the back on Congress when this is all done can bring this all about.
Any sane person would have visited her and asked if she wished to go on living. A simple blink could have established her true wishes.
I believe that Greer sees himself as a well meaning Christian who thinks he is showing the world how such a "man of God" should behave.
When this is over, his conscience won't bother him, and he will get congratulations from many religious folks.