Authorities confirmed in a media conference today Lucas Fowler, 23, the son of NSW Hills District Chief Inspector Stephen Fowler, was found dead on Canada's Alaska Highway on July 15.
His body was found next to the body of his American girlfriend, Chynna Deese, 24, around 20km from the popular Liard Hot Springs.
It is understood the couple, who were on a road trip on the remote stretch of road in a Blue 1986 Chevrolet van with Alberta license plates, had been shot.
Police have confirmed they were both killed but do not believe their deaths are linked to any other active or ongoing investigation.
'This is tragic. Our hearts and thoughts go to all the family involved,' Sergeant Janelle Shoihet said.
'It's my understanding Lucas was living here (in British Columbia).'
The families of both victims have been notified.
NSW homicide officers are travelling to Canada to provide support to the grieving family but will not be involved in the investigation.
Police are appealing for assistance from anyone who might have been travelling in the area to contact them.
Anyone staying in nearby camping highways have also been advised to come forward.
Officers are currently seeking dashcam video taken by drivers passing through the area.
The family of Lucas and Chynna have posted emotional tributes on social media confirming their deaths.
'We have lost our dear Lucas Fowler, son, brother, grandson and friend in the most terrible of circumstances,' his father wrote in a post to Facebook.
'To lose someone so young and vibrant, who was travelling the world and just enjoying life to the full, is devastating.'
Inspector Fowler also offered touching words to his son's partner.
'To know his beautiful girlfriend, Chynna Deese, of Charlotte, North Carolina, also lost her life in this violent event is too cruel. All our love and best wishes go to Chynna's family and friends.'
He said his family was now travelling to Canada 'to be with our boy' and to bring him home.
'At this stage we can only move forward a minute at a time, and those minutes are moving so slowly.
Please share this post with all those who may have crossed paths anywhere in the world with these beautiful people.'
In a tribute to her sister, Kennedy Deese expressed 'overwhelming sadness' about the suspected murder of her sister.
'They were bright and beautiful souls. We are all still in shock and heartbroken,' she wrote.
'No further information is available at this time, please do not ask.'
'The investigation into this incident is being led by the Canadian authorities and as such, they will be the appropriate source for information as it comes to hand,' NSW police said in a statement.
Canadian police are appealing for anyone that travelled the stretch of highway around the time of the discovery to come forward, according to a RCMP media release.
The Department of Foreign Affairs and Trade is providing consular assistance.
'Due to our privacy obligations we will not provide further comment,' a DFAT statement said.
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