Police in northern Ireland are still questioning a 23-year-old man from north Belfast as part of an investigation into the murder of Jonathan Stewart.
Mr Stewart was shot and killed at a house in north Belfast at 7.30 a.m. on Friday in an attack linked to a feud within a loyalist paramilitary group.
A gunman forced his way into the house and singled out Mr Stewart during the attack.
Police and loyalist sources linked the murder to the feud within the loyalist Ulster Defence Association and believe it was carried out by paramilitaries from the lower Shankill.
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Mr Stewart is the nephew of a well known loyalist in the north Belfast area.
The man being questioned was arrested yesterday.