The former prison officer, 63, was charged 40 years ago for the murder of Outback from three people

Monday, October 2, 1978: The trio started a motorcycle trek from Alice Springs.

Tim and Karen were traveling in a 1977 red BMW 100S with a home-made side car with Tim's nine-month-old Doberman, & # 39; Tristie & # 39 ;.

Gordon drove a blue Suzuki GS750 from 1977 with Victorian license plates.

The group traveled to Aileron and camped overnight at Ti Tree in NT.

Tuesday, October 3, 1978: The group stopped at Wauchope, & # 39; Devils Marbles & # 39; and & # 39; The Three Ways & # 39 ;.

They met a male motorcycle enthusiast on Frewena before they camped with him at Barry Caves.

Wednesday, October 4, 1978: The group continued to travel to Mount Isa with the man.

Only Karen, Tim and Gordon checked the Moondarra Caravan Park in the afternoon.

On Wednesday evening the trio was accompanied by a man in a brown and white Toyota Landcruiser.

Thursday, October 5, 1978: The trio was seen leaving the caravan park with the man in the Toyota Landcruiser, leaving the motorcycles and the dog behind.

Later on Thursday the same vehicle returned to the park with a man who was alone looking for the dog.

Friday, October 6, 1978: All properties, except the sidecar, have been removed from the campsite.

The dog was on Mount Isa Dump.

October 24-25, 1978: The bodies of Karen, Tim and Gordon were discovered in bushland near Spear Creek.

November 13, 1978: A 23-year-old man was arrested after he was in possession of Tim's red BMW motorcycle.

April 12, 2019: A 63-year-old man, reportedly former prison officer Bruce John Preston from Goulburn, is charged with three counts of murder