Further arrest over McCauleymurder
The man, who is from Londonderry, was taken to a police station in Belfast for questioning.
The officer leading the investigation, Detective Chief Inspector Michael Harvey, said the arrest brought the number of people who have been arrested since Paul died last June to 13.
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Hide AdTo date, one man has been charged with murder and another reported to the Public Prosecution Service. DCI Harvey said PSNI enquiries into Paul’s murder were active and ongoing and he appealed to those with information to come forward.