Employee files a sexual harassment case against another employee now the other employees are not being treated fairly

This looks like more like a complaint than a question. Can you be more specific about what you wish to know? The postal service provides this advice for its employees who believe that may have suffered discrimination or retaliation: "If you are a Postal Service employee or applicant for Postal Service employment and believe you have been discriminated against because of your race, color, religion, genetic information, national origin, sex (including pregnancy, sexual orientation, and gender identity, including transgender status), age (40+), physical or mental disability or in retaliation for involvement in protected EEO activity, you have the right to file an EEO complaint with the Postal Service. You must take part in the EEO precomplaint process before filing a formal EEO complaint. The purpose of the precomplaint process is to advise you of your rights and responsibilities under the EEO process, to identify your claims, and to try to resolve the matter informally." See https://about.usps.com/publications/pub133/pub133_009.htm.