Post office owner says Horizon system was used to frame him for wife’s murder

Robin Garbutt hopes for fresh appeal against conviction that came after jury heard evidence using data from discredited IT system

A post office owner serving a life sentence for murdering his wife hopes to submit a fresh appeal against his conviction, claiming the discredited Horizon computer system was used to wrongly frame him for the killing.

Robin Garbutt has maintained his innocence ever since his wife, Diana, was bludgeoned to death in their flat above the post office in Richmondshire, North Yorkshire, in the early hours of 23 March 2010. Many of his former customers still visit him in prison regularly, refusing to believe he was capable of the brutal murder.