It doesn't matter what you think or the Judge thinks regarding his truthfulness.
In America, we don't starve disabled people to death because we THINK there husbands have pure motives.
It has been my experience that doctors usually handle this without fanfare by using a overdose of pain meds.
My mother was saved from her agony in this way. It was not known by me until much later. Her sisters made the aggrement with the doctor. I was very angry at first. I understand death much better now.