Detective Inspector Darren McCartney said: “Officers from Antrim and Newtownabbey District, working in conjunction with detectives from the Serious Crime Branch, arrested a 46-year-old man at an address in the Springfarm area of Antrim at around 2pm today, Monday 30th April.
“Charles Valliday is a remand prisoner who has been unlawfully at large from Maghaberry Prison since Thursday 9 November, 2017. He was returned to prison this afternoon.
“His brother, James Valliday, 52, was arrested at an address in the north Belfast area on Sunday 17, December 2017 and was returned to Maghaberry Prison at that time."
Both men had been remanded in custody on charges surrounding the murder of Christopher Mackin, which occurred in Belfast on 1st March 2012.
Detective Inspector McCartney added: “I would like to thank members of the public who came forward with information following our appeal to locate Charles Valliday and James Valliday, which undoubtedly helped officers establish their whereabouts."