The man – who worked as a cleaner in Vojneski’s brother's business – found the defendant asleep in a work van in his driveway about 7.30am in March 2012.

He invited him inside and saw him off wearing a change of clothes only hours later.

Vojneski’s girlfriend, Ms Conlon, was stabbed to death in her Macgregor home the previous night.

Her boyfriend, Aleksander Vojneski, 31, is on trial in the ACT Supreme Court accused of her murder on March 27, 2012.

The Crown alleges Vojneski murdered Ms Conlon at the north-side home after drinking and becoming angry after a string of unsuccessful attempts to obtain drugs.

The man entered the witness stand on Monday as the trial entered its third week.

He told the court he woke on the morning of March 28 to discover the work van mysteriously parked in his driveway.

Confused, he thought he had missed work and texted his boss.

But he received no reply and a closer inspection of the vehicle revealed Vojneski asleep in the back covered by a blanket.

The witness said he woke the defendant with a tap on the window, invited him inside and showed him to a spare room.

But the accused instead asked for cigarettes and smoked in the dining area.

The man said he then left Vojneski at the house and drove the van to drop off his son at day care and to collect methadone from a Civic clinic.

He returned about an hour later to find Vojneski in the same room of the house watching television.

The witness said Vojneski did not say much during the stay, but appeared to be in a normal mood.

He said he could not recall what the accused had been wearing when he arrived, but he had given him a change of clothes before he left.

The witness identified a photograph of an orange shirt he had provided to Vojneski. His evidence will continue on Tuesday.

Earlier in the day, two men who received phone calls from Vojneski on the night of the murder said the accused killer seemed "panicky" and "anxious".

The court heard Vojneski had contacted the pair to ask if they could help him obtain cannabis on credit.

In evidence, one said he received a call about 8.25pm and told Vojneski to call back later.

He then ignored multiple calls and text messages because he “didn’t want anything to do with Alex”.

The witness told jurors the defendant sounded “fidgety”, “panicky”, and “anxious”.

“When he called me, he didn’t seem right,” the man told jurors.

“You could hear it in his voice.”

The second man said Vojneski’s voice sounded “real speedy” and “real rushed”.

The trial before Justice John Burns continues on Tuesday.