A camper who met Russell Hill has told a court about a personal conversation he had with the 74-year-old about a week before he was allegedly killed.

Chris Benton, who met Hill while he was camping alone at King Billy campsite in Victoria on March 11, said Hill confided in him about a struggle.

They had been chatting about life and Hill’s career working in the forest.

“He did go on to say that retirement did ‘f— him up’. He actually put his head down when he said that remark,” Benton told the jury.

Several campers who had met Hill and Clay in the weeks before their deaths also gave evidence in Victoria’s Supreme Court on Wednesday.

Carol Clay, 73, and Hill, 74, were camping together when they went missing from Bucks Camp in Victoria’s Wonnangatta Valley in March 2020.

Greg Lynn is accused of killing the couple, whose remains were later found in bushland near the Union Spur Track, near Dargo.

The 57-year-old man, who was a Jetstar captain at the time, has pleaded not guilty to two counts of murder and is on trial at the Supreme Court in Melbourne.

Clay’s daughter spoke about her mother’s loving relationship with Hill.

Hill and Clay were together for 14 years at the time of their deaths, the 73-year-old woman’s daughter Emma Davies told the jury on Wednesday.

“They’d known each other from childhood. Russell was mum’s first boyfriend,” she said.

“She said it was a very caring and loving relationship.”

Police contacted Davies on March 29, 2020, about nine days after the alleged murders, to ask if she knew where her mother was.

“I said I didn’t know,” she told the jury.

The police officer then asked for Davies’ consent in sending out a missing person’s report to the media about her mother’s disappearance, the jury was told.

She said she had privacy concerns about that as Hill was married to another woman.

“Russell was married and so I was concerned about the media release going out and showing them camping together,” she said.

Prosectors have claimed Lynn intentionally killed the couple, and told the jury this would be proven beyond reasonable doubt due to his conduct after the alleged double murder.

But his barrister said the two deaths were accidental and that Lynn made “a series of terrible choices” after their deaths, including burning their bodies and campsite.

Defence barrister Dermot Dann KC on Tuesday said Lynn told police Hill accidentally shot Clay in the head, and then came at him with a knife after an argument about hunting.

Lynn told police he was trying to defend himself from the knife when it went into Hill’s chest, the barrister told the jury.

“I haven’t behaved well. I’ve made some poor decisions, but murder, as I understand it, I’m innocent of,” Dann said Lynn told detectives.

However, prosecutor Daniel Porceddu put forward an alternative version of events.

He alleged it was Hill who was killed first, and Clay’s death happened after she had “witnessed or been aware of Mr Hill’s violent death”.

He pointed to Lynn’s conduct after the alleged killings as evidence he committed murder, including not calling for help, contaminating the scene and concealing evidence.

The trial continues.

-with AAP