A registered sex offender serving a life sentence in California for the rape and murder of an aspiring model now claims to be “transgender” and refers to himself using feminine pronouns “she” and “her”. David Rademaker, convicted in 2006 of the grisly slaying of a 20-year old woman, has filed a lawsuit accusing prison staff of “deliberate indifference” to his “serious mental health needs,” and is seeking a private cell.