The Mississippi Supreme Court has refused to hear an appeal from a Marion County woman convicted of murder.

Mikimie “Kim” Brown had asked the high court to hear arguments that her history of mental problems rendered involuntary a confession to the shooting death of Gerald Dillon.

Those arguments were rejected last year by the state Court of Appeals. The Supreme Court on Thursday declined to hear Brown’s appeal.

Brown was convicted and sentenced to life in prison in 2006 in the murder of Dillon. She also was sentenced to two years for attempted arson.

Prosecutors said Brown, of Columbia, went to Dillon’s Foxworth residence on Dec. 12, 2000, and shot and killed him. Prosecutors said Brown was jealous because Dillon had taken up with another woman.

In a written confession given to law enforcement officers, Brown said she and Dillon argued, he grabbed her and the handgun she was holding accidentally discharged, according to court documents.

Prosecutors said Brown had previously threatened Dillon. Defense attorneys claimed Brown had been repeatedly physically abused by Dillon.

Brown challenged her confession, saying she suffered from post-traumatic stress disorder and borderline personality disorder. She further argued that she was coerced into signing the confession amid promises of leniency by law enforcement officers.

Officers testified Brown exhibited no signs of mental illness when interviewed, had come to the police station voluntarily and signed the confession voluntarily. They said Brown was promised nothing.

The Appeals Court ruled Brown’s confession was voluntary.