SPOKANE, Wash. — The trial of a person accused of killing three Spokane women more than 25 years ago has been delayed.

The Spokesman-Review reports ( http://bit.ly/2ch6VCh) the trial of Donna Perry has been delayed because of a possible ethics breach in the Spokane County Public Defender’s Office.

Prosecutors charged Perry, a transgender woman previously known as Douglas Perry, with murder in January 2014. They accused her of killing three Spokane prostitutes in 1990.

Three attorneys in the public defender’s office withdrew from the case last April after they discovered at least two investigators in the office may have committed an ethical violation. Their withdrawal set the trial back several months.

Attorneys Kyle Zeller, Nathan Poston and Brooke Hagara had represented Perry before they decided to withdraw from the case. In an Equal Employment Opportunity Commission complaint against the Public Defender’s Office in July, Hagara said the decision to withdraw came after the three discovered an office investigator acting unethically in attempting to discover information related to the case.

Karen Lindholdt, deputy director of the public defender’s office, said she was unable to “comment on details of an ongoing active investigation regarding a county employee.”