Millie Martin murderer Barry McCarney claims fellow child killer Robert Black 'confessed' crimes to him in Maghaberry Prison
Barry McCarney, who beat a toddler to death in one of Northern Ireland's most horrific crimes, claims fellow child killer Robert Black confessed to him in prison before he died.
Black, who was convicted of four child murders but suspected of many more, died in Maghaberry Prison aged 68 in January.
He had never admitted to any of his crimes in court.
During his time behind bars he befriended Barry McCarney, who is serving a 25-year jail sentence for the murder of 15-month-old toddler Millie Martin in 2009.
And it has now emerged the sadistic thug told prison authorities that Robert Black had confided in him that he had killed many children.
It is understood that detectives from England flew to Northern Ireland last week to question McCarney at length on his claims.
Black, from Falkirk in Scotland, was a delivery driver who stalked the roads of the UK searching for victims.
He spent the final days before his death in jail playing poker with fellow paedophiles.
He is understood to have been friends with Gerry Adams' child molester brother Liam Adams and convicted rapist and pensioner killer Trevor Hamilton.
His reign of terror was ended in 1990 when he was caught red-handed by police with a barely alive six-year-old girl hooded, bound, gagged and stuffed in a sleeping bag in the back of his van in the Scottish village of Stow. He had sexually assaulted her moments earlier.
Once in custody, the predator was linked to a series of unsolved crimes in the previous decade.
In 1994, Black was found guilty of three child murders in the 1980s - those of 11-year-old Susan Maxwell, from the Scottish Borders, five-year-old Caroline Hogg, from Edinburgh, and Sarah Harper, 10, from Morley, near Leeds - as well as a failed abduction bid in Nottingham in 1988.
In 2011, he was found guilty of the 1981 murder of nine-year-old Jennifer Cardy, from Ballinderry, Co Antrim.
Black was also suspected of involvement in other killings and unexplained disappearances and had long been the prime suspect in the case of missing 13-year-old Genette Tate, who was last seen in a rural lane in Aylesbeare, Devon, in 1978.
No trace of the newspaper delivery girl has ever been found. All that remained at the scene were her bike and scattered papers.
Black died in non-suspicious circumstances in Maghaberry on January 12 and his body was cremated at the direction of prison authorities. His ashes were scattered at sea without ceremony.