DNA tests have confirmed a couple arrested last week in the Kerry Babies case are the parents of 'Baby John'.
It comes almost 40 years after he was found stabbed to death on White Strand Beach in Caherciveen, Co Kerry.
His parents were never identified.
DNA tests have now confirmed the couple arrested on suspicion of murder last week, and subsequently released, are his parents.
The pair - a man aged in his 60s and a woman in her 50s - were arrested by Gardaí last Thursday and released without charge.
Their solicitor has said they completely maintain their innocence.
Aidan O'Connor, Chief Reporter with Kerry's Eye, said the DNA samples provided categorically confirm an almost 40-year mystery.
"We now know definitely and beyond doubt, as much as DNA profiling can be certain, that the couple arrested last Thursday and held in two seperate Garda stations in Kerry provided voluntarily DNA samples," he said.
"The results of those were turned around in a matter of hours, they were put to the two suspects.
"It now, beyond doubt, is confirmed that that couple... are in fact the baby's parents".
Mr O'Connor said the DNA samples were processed at Garda Headquarters.
"The couple, individually and separately, volunteered them," he said.
"Those swabs of DNA were sent to Forensic Science Ireland at Garda Headquarters in the Phoenix Park.
"The results were turned around in a matter of hours, and they concluded that that couple of the parents of Baby John".
Mr O'Connor said the couple's solicitor agrees DNA samples prove parentage, but nothing else.
"While he's not publicly admitting that they are the parents he's saying even if they were, parentage in itself does not constitute enough grounds to arrest somebody on suspicion of murder.
"That's a leap too far, according to Pádraig O'Connell," he added.
Following the couple's release last week, a file is being prepared for the Director of Public Prosecutions (DPP).
Reporting by: Seán O'Regan