On May 8, 2018, Denise's attorney declined to comment at that time, saying he had not had time to review the case. Denise's estranged husband, Winchester, was serving his sentence at
Wakulla Correctional Institution near Tallahassee; his attorney said his client would take the stand at trial if legally compelled to do so. However, the attorney did not think Winchester would be charged in the case as well. Ethan Way, Denise's lawyer, said his client was innocent of all the charges. "[She] had absolutely nothing to do with Mike Williams's disappearance and had absolutely nothing to do with any of the crimes that Brian Winchester committed." He found it convenient that the indictment came after Winchester had been imprisoned for several months. On Denise's behalf, Way entered a plea of not guilty.
Trial In late June 2018, Denise Williams was ordered held without bond, with trial date set for September 24. Audio of Brian Winchester's interview with the FDLE was played in court. In it, Brian confessed to pulling the trigger but claims the killing was Denise's idea. Her defense argued that the tape should not have been admitted as evidence since Winchester was not charged with anything despite his admission; the prosecution said it simply asked him to tell the truth about what happened. She went on trial in December. The state's star witness was Brian Winchester, who testified at length about how he and Denise had never really ended their high school relationship, even after they both married others. Kathy Thomas, Winchester's first wife, told the jury that she had suspected the two of having an affair in the late 1990s, when they frequently double-dated with Mike and Denise. Brian said in his confession, a tape of which was played for the jury, that the affair had started in 1997 and just "snowballed". After discreetly rekindling the relationship, the two began to consider killing Mike so they could marry, as Denise's family frowned on divorce for religious reasons. Denise suggested staging a boating accident on the
Gulf of Mexico where they could throw both Mike and Kathy Thomas overboard, but Winchester did not want to kill his children's mother. After rejecting plans for a murder at Mike's office meant to look like a robbery, Winchester hit on the idea of an apparent hunting accident after he saved Mike from
quicksand when the two were hunting in
Arkansas. Prosecutors also played a taped phone conversation in which Kathy Thomas, who was working with police at the time, had told Denise she knew the truth about the crime. Each time she brought it up, Denise attempted to change the subject, Five months later, Mike and Denise's daughter Anslee was awarded all assets of her mother, including her late father's estate and insurance monies that were due to her mother. Denise signed them over to Anslee to avoid prosecution on three counts of
insurance fraud. As part of the deal, Anslee may not use any of the money on her mother's legal fees; if she did, she would owe the state a US$150,000 penalty. , then--year-old Denise was imprisoned at the
Florida Women's Reception Center.
Appeals In January 2020, Denise Williams appealed her conviction and life sentence. Her attorney argued before the
Florida First District Court of Appeal that there was no evidence she was involved in the commission of the murder. In November 2020, the murder conviction was overturned, but the conspiracy to commit murder conviction was upheld including the 30-year sentence that accompanied it. In April 2021,
Florida's Attorney General appealed the reversal of Denise's murder conviction to the
state's Supreme Court. It cited conflicting
precedent and state constitutional provisions. == In the media ==