Police Ombudsman Michael Maguire said the original investigation into the murder was "very poor"
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Sgt Joseph Campbell: RUC commanders 'could have prevented murder'

The murder of a police officer 37 years ago could have been prevented by senior Royal Ulster Constabulary (RUC) commanders, the police ombudsman said.

Sgt Joseph Campbell, a father-of-eight, was shot dead as he closed Cushendall police station in County Antrim in 1977.

"Senior RUC officers and management had information on a very specific threat and failed to respond," Police Ombudsman Michael Maguire said.

Will Leitch reports.