In a statement released after the verdicts, Isabelle’s family said: “Isabelle should have had her whole life ahead of her, but she was taken from us in the most heartbreaking way.
“She was so loved and our lives will never be the same without her.
“While today’s verdicts cannot undo the pain caused or bring Isabelle back, it does mean justice has been served.
“We will remember Isabelle forever.”
Det Ch Insp Steve Chatterton said Isabelle suffered “catastrophic injuries at the hands of the very people who should have loved, cared for and protected her”.
Walker and Simpson “robbed Isabelle of her future” and “deprived her family of watching her grow up and achieve those milestones that so many take for granted”, he added.
District crown prosecutor for the Crown Prosecution Service Kirstie Devine said Isabelle suffered “shocking violence” and “appalling abuse”.
The “raft of evidence”, which included phone records, CCTV and medical reports, showed “only the two adults who were regularly with Isabelle could have harmed her”, she said.
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