The PSNI is treating the death of a 54-year-old Co Derry man as murder.
Joseph Black was found dead in his home at Lambeth Way, Coleraine at 9.15 yesterday morning. He had been severely beaten and received "horrific" injuries, a PSNI spokesman said.
The PSNI described Mr Black as a "harmless and inoffensive" man who was well-known in the area.
Police are appealing to anybody with the "slightest scrap" of information to come forward.
