The paedophile who molested former Greens leader Bob Brown, has died in jail.
Ian Douglas Davidson, 84, collapsed while getting on a truck to Long Bay prison hospital on Friday and died on Saturday.
Davidson was charged and convicted of six counts of indecent assault against Mr Brown when he was in Year Six in Armidale in the late 1950s.
"The whole saga is unutterably sad," Mr Brown told Fairfax Media upon learning of Davidson's death.
The former Sydney Grammar School teacher was serving out a sentence for sex offences relating to a Sydney student in the 1960s.
In April this year, Davidson was sentenced to a maximum of seven years in jail but would have been eligible for parole in three years.
He was found guilty in the Sydney District Court of eight counts of indecent assault and one count of buggery against his victim – an 11-year-old boy.
Court documents state that the victim was scared of getting in trouble if he refused Davidson's advances.
"It was clear from (the victim's) evidence that he was acutely conscious of other boys becoming aware of his abuse," Judge Deborah Sweeney said.
Davidson was not arrested until almost 50 years after the offences against the student took place.
He was arrested at a Surry Hills nursing home and when questioned he denied knowing the victim during his time at the St Ives school.
This was despite police showing him copies of the victim's report cards that he had signed.
During his sentencing, Judge Sweeney said the victim had told the court that the abuse left him struggling with "anger, fear, loss of trust, self-loathing".