A NSW man who helped his partner cover up the murder of her six-year-old daughter has been released after 12 years in prison.
Robert Terry Smith pleaded guilty and was sentenced to 16 years for manslaughter by gross criminal negligence and being an accessory after the fact to murder in 2011.
The 43-year-old left Junee Correctional Centre in southern NSW early on Friday, a State Parole Authority spokesperson confirmed with AAP.
He will serve the remainder of his 16-year sentence in the community subject to strict conditions.
Smith pleaded guilty and was sentenced to 16 years for manslaughter by gross criminal negligence and being an accessory after the fact to murder in 2011.
He unsuccessfully appealed against his sentence all the way to the High Court.
His then-partner, Kristi Abrahams, the mother of six-year-old Kiesha Weippeart, was convicted of her murder and sentenced to at least 16 years.
Smith knew the girl had been injured and rendered unconscious but did not seek medical attention for her.
He disposed of her body, destroyed evidence and gave false accounts to police, media, and the Department of Community Services in a "determined and sustained course of conduct" to destroy evidence, Justice Megan Latham noted when sentencing Smith.
The objective gravity of his actions after Kiesha's death was greater than the manslaughter offence, she said.
Smith was granted parole in March after the State Parole Authority formed an initial intention to release him in February.
He will be subject to strict conditions during his four-year parole period, including that he not enter the Penrith or Blacktown local government areas.
A former friend of Abrahams turned victim's advocate Alison Anderson told reporters outside court following the parole hearing in March Smith was a "putrid grub" who should not have been granted parole.
"My heart goes out to every person that has been supporting Kiesha and every other little angel around. It's just been one big kick in the gut today," Ms Anderson said.
Reports to the parole authority stated Smith had developed an insight into his offending and expressed remorse.
Retired detective chief inspector Russell Oxford said hearing Smith had expressed remorse gave some comfort.
"I'm really hopeful that he's genuine and he'll never forget what they did," he said last month.
