I think Michael changed his mind after he heard Terri's parents testify the lengths to which they would go to keep Terri alive. Gruesome isn't the word for it.
That's not to condemn them, but it was pretty excessive.
I know. I wish some here would examine the Schindlers as closely as they do Mr. Schiavo. It's not a pretty thing to say, but this whole situation isn't pretty.