In the past when I have assisted prisoners with SCI who were having problems, I have used National Disability Rights Network, Protection and Advocacy. There is also a non-profit that assists prisoners. http://www.napas.org/regs/default.htm By Mail...

National Disability Rights Network (NDRN)
900 Second Street NE, Suite 211
Washington, DC 20002
By Phone, FAX and TTY...

Phone: (202)-408-9514
Fax : (202)-408-9520
TTY: (202)- 408-9521

California
CAP

Address: Client Assistance Program, Department of Rehabilitation
721 Capitol Mall 4th Floor
Sacramento, CA 95814
Phone: 916-558-5395 \ 800-952-5544
tty: 916-558-5392 \ 866-712-1085
Fax: 916-558-5391
E-Mail: smentkow@dor.ca.gov
Website: www.dor.ca.gov/cap

PADD/PAIMI/PAIR/PABSS/TBI/PAVA

Address: Disability Rights California
100 Howe Avenue, Suite 185N
Sacramento, CA 95825
Phone: 916-488-9955 Admin. Off.\ 916-488-9950 Legal Off.\ 800-776-5746
Fax: 916-488-2635 or 916-488-9962
E-Mail: info@disabilityrightsca.org
Website: www.disabilityrightsca.org
www.disabilityrightsca.org/espanol

I would also suggest this group: http://www.prisonlaw.com/ They are only reachable via mail. Go for the free legal help. I suggest that you start with National Disability Rights Network (NDRN).