Queensland police have intensified their search for two men wanted for the alleged murder of Levi Johnson, who was fatally stabbed outside a gym on Brisbane's southside.
Mr Johnson, 23, was stabbed to death after his car was allegedly cut off in the driveway of a Mansfield gym on Monday.
Thomas Myler, 35, and Kyle Martin, 24, are wanted by police for questioning over the attack and remain on the run.
Detective Superintendent Andrew Massingham said police believe the pair has been harboured by members of the public.
He said both men are alleged to be members of an organised crime organisation known as the 13 Kings and should be considered potentially armed and dangerous.
Police have issued a stern warning to anyone who might be assisting the men.
"Arrest warrants have been taken out for both with respect to the murder of Levi Johnson and also a circumstance of aggravation to the commission of that offence," Detective Superintendent Massingham said.
"It will be alleged that each were a part in a criminal organisation at the time of the commission of the offence.
"The offence of accessory to murder can be preferred for those persons that continue to harbour or assist these two men. That offence carries up to life imprisonment."
He said authorities across Australia have been notified of the two men.
It comes after Stuart Galloway and Luke Thomas Moore, 34, faced court earlier this week, each charged with Mr Johnson's murder.
Police allege the four men smashed their way into the 23-year-old's car before chasing him across the road where he was allegedly stabbed multiple time in the chest.
CCTV footage shows meeting prior to alleged offence
Detective Superintendent Massingham alleged those behind the attack were "intent on causing significant injury and ultimately death" to Mr Johnson.
"It was something that was ferocious. It happened extremely quickly," he said.
He said police had obtained CCTV footage of a group of men meeting at Carindale Shopping Centre just prior to the alleged offence.
"They observed him [Mr Johnson] for some time, waited for him to depart … and then followed him where they eventually cornered him in the carpark," he said.
Police received 27 reports from CrimeStoppers relating to the possible locations of Mr Myler and Mr Martin.
As a result, police said they had visited more than 40 addresses as part of their search and that visits to their associates will continue until the pair are found.
Appeal to shoppers for dashcam footage
It comes as police have issued a new appeal for information to anyone who visited two car parks in Carindale Shopping Centre on Monday September 12.
They have asked anyone who visited the blue car park via Creek Road between 12:30pm and 2:10pm, or the purple car park via Winstanley Street between 11:05am and 1pm should contact police.
"Our appeal the other day yielded significant evidence. This is a significant strategy that will certainly help us identify the final movements of these individuals just before and after the offence took place," he said.
"If people entered that car park and they have dashcam of either their entry or exit it would be appreciated if they could come forward," he said.
Detective Superintendent Massingham described the alleged incident as a tragedy.
"My thoughts are still with the people who witnessed this horrific event," he said.
"It clearly was traumatising, it was confronting."
