Scenes of crime officers investigate the murder scene

Mr McCausland, 20, died after three men burst into his Dhu Varren Park home on 11 July and shot him.

His partner and her two children, aged nine and six, were in the house at the time of the attack.

Police believe the killing was the work of loyalist paramilitaries. His family have rejected claims that Mr McCausland was a member of any paramilitary group.