Ainslie man Peter Forster-Jones, 22, has been charged with the murder of Canberra artist Eden Waugh in 2016.
He faced the ACT Magistrates Court on Saturday and was also charged with allegedly attending Mr Waugh's unit two months before the murder with a machete with the intent to commit an offence.
Eden Waugh, 37, was found dead with a single gunshot wound to his chest when police were called to his Watson home on Windeyer Street shortly before 8pm on November 3 in 2016.
After an extensive investigation, Forster-Jones was arrested in Parkes on Friday .
Forster-Jones stood silently, without shoes, as the magistrate read the charges to him, including the murder charge. He did not enter a plea.
Forster-Jones was not granted bail and will be remanded in custody until early March.
In December 2017, Tavake Lee Pikula, 31, was charged with murder and trespass with an intent to cause harm in relation to Mr Waugh's death.
At a press conference on Saturday morning prior to the hearing ACT Policing Superintendent Scott Moller said there was "every likelihood" there would be further arrests made and police could not rule out laying further charges as the investigation into Mr Waugh's murder continued.
"Yes, certainly one person pulls the trigger, but that doesn't mean it's just one person involved," Superintendent Moller said.
Police renewed their plea to anyone with information about the murder of Eden Waugh to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers ACT website.
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