BOSTON (CBS/AP) — A convicted killer is suing the Massachusetts prisons commissioner in her latest legal effort to receive a sex change operation at taxpayer expense. On Wednesday, Michelle Kosilek filed the lawsuit against Correction Commissioner Thomas Turco in federal court in Boston last week.

The lawsuit asks a judge to order Turco to immediately transfer Kosilek from a men’s prison in Norfolk to the state’s women’s prison in Framingham, and to have the Correction Department’s medical provider schedule her for “gender-affirming” surgery.

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Michelle Kosilek. (WBZ-TV file image)

A state prisons spokesman declined to comment.

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Kosilek was known as Robert Kosilek when she was convicted in 1990 of murdering her wife, Cheryl.

The U.S. Supreme Court in 2015 declined to hear Kosilek’s appeal of a lower court ruling that rejected the requested surgery.

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