Luke Davies and his partner Jessie Baird were allegedly murdered in Sydney's east when Beaumont Lamarre-Condon shot them with his service weapon while off-duty in February.
The crime was allegedly committed in Mr Baird's home in inner-city Paddington.Â
The 28-year-old senior constable was sacked from the NSW Police Force after being arrested and charged with both men's murders.
A memorial service for Mr Davies (left) was in Brisbane and Mr Baird was farewelled in Melbourne. (HANDOUT/NSW POLICE, STUDIO 10)
He remains in custody.
Lawyers for Lamarre-Condon are due to appear before Sydney's Downing Centre Local Court on Tuesday, when a magistrate will take steps to further progress the criminal case.
The court date comes after Mr Davies was remembered at a memorial service in Brisbane on Sunday. Mr Baird was farewelled at a funeral in Melbourne in March.
Those who knew the couple spoke fondly of them, wanting them remembered as they lived rather than for their tragic ends.
Police allege Lamarre-Condon's February 19 attack was premeditated after a months-long campaign of "predatory behaviour" targeting Mr Baird, who the officer briefly dated.
The couple's bodies were not located until February 27, when they were found inside surfboard bags at the fence line of a rural property in Bungonia near Goulburn, about 200km southwest of Sydney.
Lamarre-Condon joined the force in 2019 and previously ran a celebrity blog, posing with dozens of A-listers including Taylor Swift, Selena Gomez, Katy Perry, Miley Cyrus and Harry Styles.
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