Sentences mother and boyfriend, police missed warrant

A two-year-old girl was murdered after weeks of extreme abuse by her mother and her mother's boyfriend, a case that has revealed a critical police failure to arrest the man on an outstanding warrant issued 18 months earlier. Harrison Simpson, 22, and Alexandra Walker, 26, were sentenced to life in prison this week at Teesside Crown Court for the murder and child cruelty of Walker's daughter, Isabelle Welsh. Simpson was also convicted of sexually assaulting the toddler.

Isabelle died in a hospital on September 14, 2025, one day after she was found without a pulse at the foot of the stairs in her home in Thornaby, Teesside. A post-mortem examination revealed she had sustained 21 broken bones in the weeks leading to her death, which the judge described as the final act in a sustained campaign of violence. The court heard she suffered an unsurvivable head injury in the 24 hours before her death and was sexually assaulted around the time the fatal blow was inflicted.

During the trial, prosecutors detailed a pattern of neglect and deliberate violence. Eleven days before Isabelle's collapse, she was taken to a hospital with a broken leg but was discharged after Walker claimed the...