Isn't all this already in the FAQ?
Proof of what? Proof that defendants can change their pleas to guilty? Proof that plea deals happen? I'm not sure what you're asking. Please be more specific.
I am assuming that the prosecutor doesn't want to deal with Chris any more than he has to, but wouldn't you? The court is not drawing this out for fun.
Entirely depends on the prosecutor.
Yes, the prosecutor would have to accept the plea deal (as would the judge), but why would you think they wouldn't? Especially since this is likely the very deal being offered by the prosecutor (and probably Heilberg as well). They probably agreed to something similar months ago between themselves, and are only having trouble getting Chris to accept it.
I don't think Chris (or the community) would be best served living in a group home.
Doesn't matter. It's a better option for Chris than tossing him out onto the street, but that's all irrelevant. Regardless of who it's good for, the court is required by Virginia law to find a placement for Chris if convicted (or spend at least 30 days trying). Whether it's a good placement for Chris or anyone else doesn't matter in the least. He'll be lucky just to get a bed.
What matters to the court is that it makes Chris someone else's problem, not what's "best" for Chris.
Besides, there is no such thing as "best". Sometimes you have to settle for "not the worst".
not pleading guilty could lead to a felony
Only the prosecutor wobbling the charges back up to a felony would do that, and then everything starts over. They might do that out of spite, but I doubt it. The prosecution has been very determined to keep things in the J&DR courts.
Also, Chris refusing to plea guilty, even when he's already spent all they time they can lay on him incarcerated, does not mean he'll somehow be found not-guilty by default. He's guilty as hell. He will be found guilty. The court won't be able to give him more jail time, but that's not the only thing they can sentence him with.
or being sent to a mental hospital against his will.
Only if the court continues to deem him incompetent to stand trial, which is not part of a sentence.
being institutionalised will prevent that and stop him getting further charges for harassment/trespassing/breaking an exclusion order/further potential rape.
Being institutionalized where, exactly?
Whatever hospital he was sent to was only a temporary facility. Permanent facilities largely went away in the 80s.
One Flew Over the Cuckoo's Nest is a historical piece. As in the past. Not the present. Taxpayers today don't want to pay for that stuff any more.
Again, I believe this is all in the jail FAQ.