Three men have been arrested by police investigating the murder of 35-year-old Belfast man Danny McGurk.
The father of six was shot dead on Sunday morning by a gang who broke into his home in West Belfast.
Local people say Mr McGurk was involved in a dispute with dissident republicans.
They say he had threatened to get even with a gang of men who beat him with iron bars and hammers earlier this month.
The Mayor of Belfast, SDLP councillor Martin Morgan, has appealed to the public to come forward with information.