A failed butcher who used a hunting knife to repeatedly stab a Melbourne woman in the face and head before leaving her to die on the street has been jailed for almost three decades.

Rani Featherston was subjected to a horrifying death in April 2014, Victorian Supreme Court judge Christopher Beale noted on Friday.

The 34-year old at one stage managed to escape her attacker but was chased down and murdered at suburban Eumemmerring by Christian Bain-Singh, 24.

"You posted a callous message on Facebook whilst still at the crime scene," Justice Beale said as he sentenced the confessed killer to serve 29 years in prison.

His social media message quoted lyrics from American heavy metal band Five Finger Death Punch: "It's not the size of the dog in the fight. It's the size of the fight in the dog".

The pair were familiar to each other but it was a chance meeting on the night of the murder when Ms Featherston suffered 21 stab wounds.

The violent killing came 11 days after Bain-Singh's unrelated stabbing attack on sleeping man Daniel Maynard.

The knife-wielding assailant entered Mr Maynard's Doveton home looking for money.

"Mr Maynard woke and tried to defend himself with his bare hands as you continued stabbing him," Justice Beale said.

Bain-Singh's offences were shocking, but he was remorseful and had good rehabilitation prospects, the judge said.

Outside court, Mr Maynard, who was left with ongoing physical and mental injuries, told journalists he doubted Bain-Singh was truly sorry.

"Remorse is a big word ... some people say it but don't know what it means," the victim said.

Bain-Singh previously worked as a butcher before losing his job amid allegations he stole from his employer.

He must serve at least 22 years before being eligible for parole after pleading guilty to murder and the attack on Mr Maynard.

Rani Featherston.