Nice little backtrack a few up but anyway...
What happened here creates too much aforethought, conflict, and confrontation for an autistic person. That, imo, would not be of any primary importance and could contribute to peripheral behaviors like being socially awkward or avoiding eye contact.
The primary contributor is probably this personality disorder they have mentioned.
even if he was aspergers he likely had some other very serious mental illness going on. The combination of the two and the inability to cope with even normal stressors led to a 'break'. As I said in another thread, the recent shootings are actually an argument for discussion of bringing back asylums where people who show the precursor signs can be institutionalized BEFORE this happens. The mental health problems and lack of effective intervention seem to all be contributors and I think with some people there is not effective intervention because the problem is that the personality disorder when that severe makes for someone who can not cope with the ordinary stressors that we all face in life. Someone like that, imo, can probably not be treated with therapy and medications. they need the stability and security of a facility that basically shields them from the outside world. Where they can do and see things in a controlled environment. In that situation they are unlikely to have a break and if they do they are not likely to hurt people to the extent they can on the outside.
A good point in this with autistics is that many do go into homes because of the routine and rigidity and constant supervision offered in them. Not because they are violent but because a place like that offers the stability and routine that they need to spare them the confusion of changes they can't process. What I said about a personality disorder ont he other hand applies more because that stability and routine is necessary to protect everyone involved from someone who has a personality disorder that severe not just themselves. The autistic often gets 'housed' to protect them from themselves and their inability to see danger to themselves whether crossing the street or some other routine matter. A severe personality disorder gets house not only for their own protection but society's protection from the consequences of a 'break'. I'm sure the difference between the two is obvious.