Two more people have been charged with the shooting murder of a man in the front yard of a suburban home in southwest Brisbane.
Jay Allen Roberts, 38, and a 26-year-old woman, who is yet to face court, are the third and fourth people charged with the Oxley murder on October 4.
Detectives arrested Roberts at a Raceview home on Tuesday afternoon, while the woman was arrested in the Brisbane CBD on the same day as the shooting.
Roberts was charged with murder and unlawful use of a motor vehicle and appeared briefly at Brisbane Magistrates Court on Wednesday.
The woman is due to face Brisbane Magistrates Court later on Wednesday, while 26-year-old Andre Van Mason and another 30-year-old man were also charged with the man's murder.
The victim died after being struck once in the chest with a shotgun shell at close range at a home in Cliveden Ave, Oxley in the early hours.
Detective Superintendent Andrew Massingham initially alleged four men and a woman armed with a 12-gauge shotgun, and potentially a handgun, were involved in the attack.
"Detectives from Operation Uniform Fortune have now charged four people with murder, with investigations ongoing," police said in a statement on Wednesday.