A woman who pleaded guilty to dressing up as a clown and murdering the wife of a man she later married in 1990 was released from prison Saturday, ending a case that has been bizarre even by Florida standards.

Sheila Keen-Warren, 61, was freed 18 months after pleading guilty to second-degree murder for shooting Marlene Warren, Florida Department of Corrections records show. The plea deal came shortly before his trial began.

Keen-Warren, who maintained her innocence even after pleading guilty, was sentenced to 12 years in prison. But he had been in custody for seven years since his 2017 arrest, and Florida’s 1990 law allowed significant credit for good behavior. She was expected to be released in about two years.

“Sheila Keen-Warren will always be an admitted convicted murderer and will wear that stain every day for the rest of her life,” Palm Beach County State’s Attorney Dave Aronberg said in a statement Saturday.

Greg Rosenfeld, Keen-Warren’s attorney, has said she only accepted the plea deal because she would be freed in less than two years and faced a life sentence if convicted at trial.

“We are absolutely delighted that Ms Keen-Warren has been released from prison and returned to her family. “As we have said from the beginning, she did not commit this crime,” he said in a text message Saturday.