Re: 20 y/o Autistic nephew and IQ of 70 is sitting in County Jail
First thing I would do is to get into contact with the Local Regional Center in your area. What should have happened at the age of 18 was that your parents needed to file consevaship papers on him, in case anything like this happened. Your parents would be his legal gaurdion and take full responsibilty for him , he would not be sitting in jail for such a petty crime. Now that he is, I would start right now looking for a residential placement. A place he can live with other people who have developmental needs, who can't live on their own, and need help and supervision.
If you do get him to NY , look into places like REhab for the developmentally disabled. Also very important, he qualifies for special Ed until the age of 22. Look up some schools for the disabled , so he can go there. He really ought to have been in a independant living program offered ob the school district , for adults with disabilites. Like I said he qualifies because of his age and disabilites. All school districts have to have these services/classess especially designed for the adults with developmental disabilites until age 22.
It is not right for him to have to take the fall for this, perhaps the charges will be dropped due to mental incapacity. If your parents or whoever is in charge with him can speak to the DA about his disabilites , he will get off the charges.