A man has been jailed for his role in helping cover up the violent murder of "absolute gem", 33-year-old mother Simone Quinlan.
Ms Quinlan was viciously beaten by her boyfriend Brendan Neil at his Melton home in August 2015 before being loaded into Wayne Marmo's ute and set on fire in a Kangaroo Flat mineshaft.
Along the way, Wayne Marmo pulled over and shot Ms Quinlan in the head about five times.
It is unknown at which point she died.
During the attack, Neil phoned Wayne's cousin Luke Marmo, now 26, who arrived at the property with a jerry can of fuel.
He placed the fuel in the back seat of the HiLux as Ms Quinlan was being loaded into the ute's tray.
Luke Marmo then accompanied Neil, who went to a hotel to "put himself on CCTV", before going to his girlfriend's house and arranging to have his clothes burnt.
The next day, Luke Marmo helped Neil sand bloodstains off his floor and used a blue light to see if any traces remained.
He pleaded guilty to one charge of assisting an offender, with Justice Jane Dixon sentencing him on Friday to four years' imprisonment with a non-parole period of two years.
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Outside the Supreme Court of Victoria on Friday, Ms Quinlan's father Wayne said his family was disappointed by the sentence.
"The court system is by far lacking in a lot of hard justice," he told reporters.
"The court system is very disappointing if you're a victim."
Mr Quinlan described his daughter as an "absolute gem" and the "life of the party".
Justice Dixon said Luke Marmo had a "strong loyalty" to Neil since his teenage years.
"You deliberately and knowingly chose to cover up a very grave crime," she said.
"You acted from a misguided loyalty to Brendan Neil and Wayne Marmo."
Justice Dixon said Luke Marmo, who has been diagnosed with a severe substance use disorder, suffered regular nightmares since Ms Quinlan's death.
"You are conscious of the callousness and inhumanity of the events," she said.
Luke Marmo has already served 291 days in pre-sentence detention.
Australian Associated Press