The man responsible for torturing the killer of missing 13-year-old Daniel Morcombe stalked his victim for a month, plotting out the best way to hurt him.
Adam Paul Davidson, 31, poured boiling water on Brett Peter Cowan as he sat at a table playing cards with other inmates at the Wolston Correctional Centre in Queensland.
Prosecutor Mark Whitbread told Brisbane District Court inspiration had struck Davidson when he saw a man pass through the gates of the prison in compression garments.
The man was covered in horrific scars and wearing a burn suit after a similar attack had been directed at him.
‘He would love that scarring to be on Cowan,’ Mr Whitbread said.
In sentencing Davidson on Monday, Judge Ian Dearden said every person was entitled to be treated respectfully, no matter how appalling the crimes they had committed.
‘We are all precious human beings, it doesn’t matter who we are,’ Judge Dearden said.
‘You have no entitlement to act as a vigilante.’
Davidson attacked Cowan using a a mop bucket filled with boiling water, which he poured over the man’s head.
As the child-killer screamed ‘why why why’, Davidson used the empty bucket to beat him over the head.
Cowan, 48, received superficial burns to 15 per cent of his body, including on his head, chest and leg, and was treated in hospital to prevent infection.
He was left permanently disfigured.
Davidson told investigators he attacked Cowan ‘for a little bit of retribution’ and he wanted him ‘to feel the pain like someone like Daniel Morcombe has felt’.
‘I did it. Only me no one else was involved. He had it coming, he’s a f***king grub,’ Davidson said.
Davidson was sentenced to three years for his actions, but will be released on parole next month after time served.
Daniel Morcombe’s remains were found in August 2011 after an elaborate police operation prompted Cowan to confess and lead undercover officers to where he dumped Daniel’s body.
Cowan was found guilty of murder, indecent treatment of a child and interfering with a corpse.
Davidson has been jailed for a series of unpaid hotel bills, which he booked with maxed out credit cards, as well as holding up a Queensland bottle shop using his finger pointed through his pocket in place of a gun.