In August 1993, he was the subject of a two-part special by "The Cook Report", a Central TV investigative documentary series presented by Roger Cook. It accused him of continuing involvement in IRA activity, of attending an interrogation and of encouraging Frank Hegarty, an informer, to return to Derry from a safe house in England. Hegarty's mother Rose appeared on the programme to tell of telephone calls to McGuinness and of Hegarty's subsequent murder. McGuinness denied her account and denounced the programme saying "I have never been in the IRA. I don't have any sway over the IRA".