"He was on lots of medication that wasn't really helping," said his mother.
Others claimed she was an informer, but this was dismissed after an official investigation by the Northern Ireland Police Ombudsman.Those known as the Disappeared had been abducted, murdered and secretly buried by republicans.
The IRA admitted in 1999 that it murdered nine of the Disappeared - including Jean McConville - and buried them at secret locations.It was several years later, in 2003, that her bodyon Shelling Hill Beach in County Louth in the Republic of Ireland.
Irish police confirmed that she had died from a bullet wound to the head.In the days that followed, the IRA
apologising for the grief it had caused the families of the Disappeared and that their suffering had continued for so long.
Say Nothing author Patrick Radden Keefe told BBC News NI that he had "a number of meetings" through the Wave Trauma Centre in Belfast with the McConvilles and representatives from some of the families.Back when they were first friends, when the Sired family lived in Haddenham, such was their bond with Ms Bester that the Sired children called her "Auntie Ruth".
The pair had not met in recent years after their lives took them on different paths.Mrs Sired went into full-time care in Stretham, near Ely, but when her family moved to March, she went with them.
Ms Bester, who lived for years in Ely, recently spent months in hospital after a fall. When she came out, her family applied for her to live in Aria Court with her dear friend.Their families were there to see the pair reunited.