A television documentary on the murder of a young Northern Ireland woman will reveal details of a parallel investigation being carried out into her death - by paramilitaries.
25-year-old Lisa Dorrian disappeared after a party at a caravan site in Ballyhalbert in County Down on 28 February.
Police believe she was killed but their investigation has been complicated by the fact Lisa's body has not been found despite extensive air, land, and sea searches.
But BBC Northern Ireland's Spotlight programme reveals that loyalist paramilitaries from the Red Hand Commando and UVF have interrogated two teenagers about Lisa.
http://news.bbc.co.uk/1/hi/northern_ireland/4551129.stm