Police will allege a "personal" and "long-running" dispute led to the alleged murder of Levi Johnson, who was fatally stabbed outside a gym in Brisbane's south last week.
Mr Johnson, 23, was stabbed multiple times after his car was allegedly cut off in the driveway of a Mansfield gym on Monday.
Four men allegedly attacked Mr Johnson in the car park. He died from his injuries at the scene.
The fourth and final man has been arrested and charged after being on the run since Monday, in what the police superintendent has described as "one of the most significant manhunts" he's seen in a long time.
Police will allege 24-year-old Kyle Martin was the one who carried the knife to the location and was the one responsible for stabbing Mr Johnson six times.
He was arrested just before 10pm on Saturday night, when detectives, with assistance from specialist police including the Special Emergency Response Team, surrounded accommodation on Albion Street at Warwick on the Southern Downs.
Police will allege the motive of the stabbing "tends to indicate a long-running dispute between the two men [Mr Johnson and Mr Martin] and it appears to be personal in nature."
They will also allege at least one of the men charged over the murder acted with intent to join an outlaw motorcycle club.
"On the mind of at least one of these accused was getting into a motorcycle group upon the commission of this crime," Detective Superintendent Andrew Massingham said on Sunday.
Mr Martin and a 24-year-old Wynnum West woman were taken into custody without incident.
Detective Superintendent Massingham said it was "some old-school detective work" that led police to capturing the wanted man.
"A vehicle associated with the wanted person's girlfriend was identified in an area just outside Warwick," he said.
Specialist police and covert officers tracked the vehicle to the Albion Street accommodation, before making a "breakthrough" discovery at around 6pm.
"We will allege the wanted person's girlfriend has left the address and sought food at a take-away restaurant – that food was sufficient for two people and was paid in cash," he said.
"It was at that time that I was confident that we had our wanted person."
He has been charged with one count of murder (serious organised crime) and his matter was heard in Ipswich Magistrates Court today.
Mr Martin did not appear in court, where he was remanded in custody and his matter was adjourned to a hearing in Brisbane on October 4.
'Disgraceful and brutal'
Superintendent Massingham said police will allege in court documents that Mr Martin was a member of a criminal organisation at the time of the attack.
"That assault was brutal, it was captured, as I previously said, on dashcam. It will also be alleged, that even after that time, one member of that four that's already been charged, continued to assault the deceased.
"This is a disgraceful act, it is a brutal assault, it is a coward assault."
Police believe the four men are members of the organised crime group 13 Kings.
Superintendent Massingham said the group have been active since 2013 and have a club house in Capalaba, which was subject to a search warrant.
"I wouldn't say they've gone under the radar in terms of not detecting any criminal offences they may have been involved in, but they are certainly on the edge of attempting to move into that more hardline group," he said.
He said this was "one of the most significant manhunts" he had seen in recent times, with up to 200 police officers working on the matter.
"We have some tired bodies in the locker room today but we are very pleased about the outcome," he said.
Investigations remain ongoing.
