There are two possibilities. Either the story of Lissa is mostly false or mostly true.
If it is mostly false, this is just a creepy guy posting his weird fantasies on the internet. Maybe going a little too far, but really nothing more exceptional than what is in the generic Tumblr thread here. The only interesting thing is that he is quite a bit older than the Tumblr demographic, but that's it. A little spicier than the usual Tumblr lolcalf, but nothing too out of the ordinary.
If it is mostly true, we have a horrorcow here. The story boils down to Murray having a disabled wife, Dani, who suffers grand mal seizures. His wife's niece (also named Dani) is profoundly disabled and for unknown reasons, Murray ends up at group therapy sessions for niece Danni where he meets another young disabled woman, "Lissa". "Lissa" becomes the partner of Dani, the wife of Murray.
When Murray has to have extensive surgery, Murray and Dani bring Lissa into their home to "help out" and she apparently stays there until now. At some point, Dani's niece moves in with them.
After the death of Dani (1), Lissa becomes sexually involved with Dani (2). Lissa has not spoken for many years and claims to not really understand human speech. Dani (2), now known as "Baby", communicates in some species of baby-talk.
Lissa is incompetent. This is different from just being disabled. Lots of people are disabled; few people are incompetent. Lissa has been judged by a court of law as not being able to take care of herself, and a guardian (Murray) has been appointed to take care of her.
Lissa’s hobbies seem to be sex, writing about sex, :autism: advocacy on the internet, Second Life, drinking Crown Royal, rendering weird porn and posting it. Oh, did I mention sex?
Lissa is incontinent. Lissa cannot speak. Lissa claims to have been sexually assaulted many times. Lissa becomes frustrated and bangs her head and hands on things hard enough to cause severe injury. Lissa dislikes wearing clothes.
In spite of this, Lissa's guardian takes Lissa out of state to work as a computer programmer. Lissa and Murray apparently live in a cheap hotel during these trips. While on one of these trips, a co-worker offended Lissa by touching her shoulders from behind while she danced at the entrance to her cubicle barefoot, wearing a sundress, and eating a banana. In a case of true chimp out, Lissa beats and kicks the hell out of this guy, going so far as to kick him while he was on the ground and no threat.
We know about this assault, not because of a news report, but because Lissa (whose internet access is apparently controlled and monitored by Murray) posted it all.
So, in summary:
- Murray James Root, guardian, allows and possibly encourages a sexual relationship between his incompetent ward and his disabled niece.
- Murray James Root, guardian, allows his ward to post arguably pornographic images on the internet.
- Murray James Root, guardian, allows his incompetent ward to interact with people on the internet who so frustrate his ward that she severely injures herself.
- Murray James Root, guardian, takes his incompetent ward, who is nonverbal and possibly socially phobic, into workplaces where she may/must interact with others.
- Murray James Root, guardian, allowed his ward to beat a man to the ground resulting in his hospitalization.
- Murray James Root, guardian, allowed his ward to boast about this assault on the internet.