Almost four months after he was sentenced for the murder of Sydney man Morgan Huxley, Daniel Jack Kelsall found himself back in the dock, this time on child pornography charges.

But the six months he was handed at Central Local Court on Monday will have little impact on the 22-year-old killer, with Magistrate Alex Mijovich saying there was no benefit in adding time to his 30-year sentence for murder.

Police happened upon the images while they were searching his parents' Neutral Bay home on Sydney's north shore during their investigation into Mr Huxley's death in October 2013.

The majority are animated depictions of young children involved in sexually explicit conduct.

The images were on the lower end of the spectrum as they did not contain actual children, only computer generated ones.

Kelsall, who came up to the dock in a crumpled grey, pin-stripe suit, made no reaction as the sentence was handed down.

It comes after Justice Robert Allan Hulme described Kelsall's killing of Mr Huxley on September 8, 2013 as the work of a very disturbed mind.

Kelsall first spotted Mr Huxley at the Oaks Hotel in Neutral Bay and then followed him from the pub to his unit nearby.

When he realised the door was left open, Kelsall went inside and attacked the 31-year-old as he lay either asleep or incapacitated by alcohol.

He indecently assaulted him before plunging a knife into him more than 20 times.

Describing it as a "chilling case of murder", Justice Hulme sentenced him to a minimum of 30 years and a maximum of 40 years in prison.

"Whether the offender killed for the thrill of it ... or whether it was as a result of fantasy or obsession I am unable to say. It was entirely senseless and needless," he added.

Kelsall's parents, who sat in the gallery throughout his murder trial, were not in court on Monday.