Inmates at prisons, and especially jails, come and go pretty regularly, so it's not surprising to me that he didn't have a cellmate. What is surprising to me, since he was in Special Housing - the equivalent of Protective Custody - was that he had a cellmate at all. It is the same thing as solitary confinement.

I still like my autoerotic asphyxiation theory. he was a sick pervert, and it wouldn't surprise me at all.

Onward and upward,
airforce