A Victorian court has heard Eurydice Dixon's killer Jaymes Todd remains at "significant risk" of reoffending because he suffers from sexual sadism disorder.

Key points: The court heard Jaymes Todd was obsessed with violent, coercive sex and choking

The court heard Jaymes Todd was obsessed with violent, coercive sex and choking A psychologist said Todd admitted he "knew there would be a sexual assault" before he attacked Ms Dixon

A psychologist said Todd admitted he "knew there would be a sexual assault" before he attacked Ms Dixon The psychologist said he believed Todd felt "intellectual" remorse

Todd, of Broadmeadows, pleaded guilty to Ms Dixon's rape and murder in November last year.

Ms Dixon, 22, was attacked as she walked home through Princes Park in Melbourne's inner-north in June 2018.

The aspiring comedian's death sparked an outpouring of grief across Melbourne and the country.

The Supreme Court of Victoria heard Todd, now 20, had an obsession with violent, coercive sex and choking, and had watched violent pornography before and after his attack on Ms Dixon.

During the second day of a plea hearing ahead of his sentencing, the court heard psychologist David Thomas agreed with the evidence of Forensicare psychologist James Ogloff that Todd's sexual sadism disorder motivated the attack.

Dr Thomas told the court Todd remained at "significant risk" of reoffending due to the disorder.

The court heard Todd stalked Ms Dixon for more than 4 kilometres from Flinders Street Station, through the CBD to Princes Park, and that he hid behind objects to stay out of her sight.

Jaymes Todd covered his face as he arrived at Thursday's hearing. ( AAP: James Ross )

Under questioning from Todd's lawyer Tim Marsh, Dr Thomas said Todd had admitted during assessment interviews that at the moment he crossed into the park, he "knew there would be a sexual assault".

However, Dr Thomas said that in his words Todd told him he wasn't sure that he would "go the whole way" until the attack was underway.

Mr Marsh asked whether "going the whole way" meant "the victim's rape and strangulation".

"Yes," Dr Thomas replied.

Supreme Court Justice Stephen Kaye had said he would consider imposing the maximum sentence — life without parole — if Todd's actions were pre-meditated.

Asked if he thought Todd was remorseful, Dr Thomas said he believed he was, but that said the attacker's autism made his remorse an "intellectual", rather than emotional, feeling of remorse.

Todd sat motionless and expressionless in the dock throughout Friday morning's proceedings.

His attention remained focused on the psychologists giving evidence about him, but he did not react to their psychological assessments.

Eurydice Dixon was an aspiring stand up comedian. ( Supplied: Facebook )

During the first day of proceedings, Ms Dixon's sister, Polly Cotton, told Todd the death had "shattered and destroyed" her family.

Ms Cotton wept as she confronted Todd, telling him she suffered PTSD and was "seething in anger" about the end of her sister's life.

Ms Dixon's boyfriend, Tony Magnuson, said he would never look at the human race the same way again.

The hearing continues.