Aiia Maasarwe called her sister seconds before being beaten with a metal pole, raped and murdered on her way home from a Melbourne comedy club.

Codey Herrmann hit the 21-year-old international student over the head four times with a metal pole after she got off a tram at Bundoora, in the city's north, early on January 16.

He dragged her into nearby hedges, beat her at least another nine times, strangled and sexually assaulted her, Victoria's Supreme Court was told today.

The details came after Justice Elizabeth Hollingworth scrapped a suppression order banning publication of details about Ms Maasarwe's fate.

The Palestinian Arab of Israeli citizenship had moved to Australia to study the previous August, and called one of her overseas-based sisters seconds before the attack.

"She felt safer doing that, speaking to someone on the phone ... whilst walking home at night," prosecutor Patrick Bourke told the court.

"I didn't expect you to pick up," was all Ms Maasarwe managed to tell her sister, Ruba, before the phone fell to the ground, Mr Bourke added.

But the call was still running and Ruba heard her sister scream and then four blows.

Ms Maasarwe died from extensive head injuries, including multiple skull fractures.

Her body was discovered in the bushes hours later by someone on their way to work.

Herrmann was arrested two days later, after police found his blood-stained cap and t-shirt, as well as the pole abandoned in a nearby reserve.

When asked if he killed Ms Maasarwe, Herrmann told police "I didn't kill no one".

He later pleaded guilty to her rape and murder but maintained he did not intentionally strangle his victim, Herrmann's lawyer Tim Marsh said.

In a statement read to the court, Ruba Maasarwe said she could not imagine how her sister must have felt before she died.

Ms Maasarwe's mother, Kittman, asked: "Why? Why should I lose my daughter because of a reckless monster in the form of a human being?"

"I was not with her to help her, defend her, protect her," the mother wrote.

Mr Marsh labelled the attack violent and brutal.

"She had the right to both feel safe and be safe in a public space," the lawyer said.

Herrmann had been squatting in a condemned house when he killed Ms Maasarwe.

His routine could be summed up as: "Get Centrelink, buy drugs, share them with mates," Mr Marsh said.