A Florida mother faces a lifetime in prison after a judge convicted her for the tragic death of her 10-year-old son, who was abandoned at a hospital while medical staff attempted to revive him through CPR on his severely injured body.

Kimberley Mills, aged 38, entered a plea of no contest to charges of first-degree murder and aggravated child abuse, among others, concerning the demise of her son, Xavier Williams. According to Florida prosecutors, she received a life sentence on Wednesday. Her plea arrangement includes an obligation to testify against her partner, 37-year-old Andre Walker, in his forthcoming trial. Authorities suspect Walker was the main perpetrator of the abuse.

Keniel Williams, Xavier’s father, shared the profound sorrow and disruption the loss has caused in his life.

“I endure sleepless nights, unable to erase family photos from my phone,” he shared, gesturing towards Mills. “These images haunt me, not just of my son, but of her too. Though we weren’t married, losing Xavier is a heavy burden. It’s incredibly challenging to carry on, affecting everything from work to daily living.”

Mills’ defense lawyer revealed that his client chose to plead guilty for several reasons, primarily to avoid causing further trauma to her surviving son, who would otherwise have to testify against her.

Bill Gladson, Fifth Judicial Circuit State Attorney, said the plea deal is about holding those responsible for Xavier’s death accountable.

“Mills’ plea, which includes truthful testimony against her co-defendant, strengthens our ability to pursue that goal and ensures the full story is brought before the court,” he said. “In doing so, Mills will spend the rest of her life incarcerated. I have no doubt she will think of Xavier every waking day and regret the pain and suffering she made him endure while she repeatedly endures her own.”

As Law&Crime previously reported, Mills and Walker rushed her son to a hospital in Tavares, an Orlando suburb, on Feb. 22, 2025, after he went into cardiac arrest. Hospital staff noticed he had bruises all over his body along with several burn marks and evidence of possible sexual abuse.

“Both Kimberley and the male left the hospital after learning that law enforcement was responding to the hospital, all while the juvenile was undergoing CPR in the Emergency Department,” cops wrote in a press release.

The mother returned to the hospital after a “short period of time” with another child but Walker never came back, police said. Mills allegedly refused to give cops information about Walker’s whereabouts or even identify him. Eventually, she gave up Walker’s name to the Department of Children and Families and authorities issued an arrest warrant, according to cops.

Detectives searched Mills’ home and collected “pertinent pieces of evidence” and confirmed Walker’s identity. He was later taken into custody. Both have been in jail since their arrests.

Xavier stayed on life support for about a month before he died on March 21, 2025.

Walker has a court hearing set for Jan. 20.