A court in North Yorkshire is hearing the case surrounding the death of 2-year-old Isabelle, whose final weeks are now at the center of a closely watched criminal trial.

Isabelle’s mother, 25-year-old Alexandra Walker, and Walker’s former boyfriend, 22-year-old Harrison Simpson, are facing charges related to the toddler’s death. Both defendants deny the allegations, and the trial remains ongoing.

Prosecutors allege that Isabelle suffered repeated injuries over a period of time and that opportunities to protect her were missed before she was ultimately taken to the hospital.

According to evidence presented in court, Walker and Simpson had been in a relationship for approximately one month before Isabelle’s death.

The prosecution alleges that during that time Isabelle sustained multiple injuries that should have prompted immediate concern.

One of the incidents discussed during the trial involved a broken leg. Court proceedings heard that Isabelle was taken to the hospital about two weeks before her death after suffering the injury.

Prosecutors allege there was a delay before medical treatment was sought and that Walker told healthcare providers Isabelle had injured herself after her leg became caught in the bars of her crib.

After medical ᴀssessment, Isabelle was discharged and returned home.

The prosecution argues that the broken leg should not be viewed as an isolated incident but as part of a broader pattern of alleged abuse.

Jurors also heard that Walker later noticed bruising on Isabelle’s body. According to the prosecution, when she questioned Simpson about the injuries, he denied harming the child, and no immediate protective action was taken.

Another key focus of the trial concerns the events of September 13, 2025.

Prosecutors told the court that Walker and Simpson had stayed up late the previous evening, and that Simpson was primarily caring for Isabelle the following afternoon before leaving the home.

According to evidence presented in court, Walker later conducted internet searches relating to symptoms involving a bleeding child and possible medical emergencies.

The prosecution argues these searches indicate she recognized that Isabelle was seriously unwell before emergency services were contacted.

The court also heard evidence from indoor security footage in which Walker was allegedly heard saying, “You’re scaring me.”

Rather than immediately calling emergency services, prosecutors say Walker first contacted her stepfather.

When he arrived at the home, he reportedly instructed her to call an ambulance without delay.

Emergency responders found Isabelle in critical condition and transported her to the hospital for emergency treatment.

Medical evidence has become a central part of the proceedings.

According to the prosecution, Isabelle had multiple fractures, a severe head injury, and other injuries that they argue were not consistent with an isolated accident.

Doctors were unable to save her, and Isabelle died the following day.

The prosecution contends that the medical findings support allegations of repeated harm over time and that emergency intervention came too late.

Both Walker and Simpson deny the allegations before the court.

According to court proceedings, Simpson declined to answer police questions following his arrest. Prosecutors also argue that Walker was aware her daughter was at risk and failed to take appropriate action, an allegation she disputes through her defense.

The defense maintains that both defendants are innocent of the charges and that the evidence should be carefully examined before any conclusions are reached.

As the trial continues, jurors are expected to hear additional testimony from medical experts, investigators, and other witnesses.

The proceedings will determine whether the prosecution has proved its case beyond a reasonable doubt.

The case has also prompted broader discussion about child protection and the importance of recognizing signs that may indicate a child is at risk.

Young children are often unable to explain injuries or seek help independently, making early intervention by adults especially important when concerns arise.

For Isabelle’s family, the trial represents an effort to establish what happened during her final days and whether anyone bears criminal responsibility for her death.

The proceedings remain ongoing, and no verdict has been reached.

As the court continues to hear evidence, the legal process will determine the facts of the case and whether the charges against the defendants are proven.