Police investigating the shooting death of rapper Chris Habiyakare in Melbourne's west in August believe the incident was a targeted attack.
Mr Habiyakare, 24, was shot during an altercation with intruders in his home in Essex Street, Sunshine, on August 24.
Investigators said a group of up to six people armed with weapons, including a gun, forced their way into the house.
Two men and three women who were at the house as guests of Mr Habiyakare fled the property, with one woman smashing a window to get out.
A physical altercation took place during which Mr Habiyakare was shot.
Police have revealed there was a significant amount of cash and drugs at the premises on the night of the shooting.
Police have released images of two men they want to identify as part of their investigation.
Detectives also want to hear from anyone who may have been in the area and may be able to provide dash-cam footage.
Police believe it was a targeted incident, but have been unable to determine a motive for the shooting.
Officers had attended the property on August 21 following reports of a physical altercation. Police are investigating whether that incident is linked to the shooting three days later.
Police believe shooting may have been over a debt
Detective Inspector Tim Day from the Homicide Squad urged anyone with information about the shooting to come forward.
"I believe there are people out there who can identify those involved in Chris's death," he said.
"That identification may be from recognising the people depicted in these images or because they have knowledge of who was involved, or even why the incident occurred.
"At this time, we have a group of people out there who we believe are still in possession of the firearm."
Inspector Day said the attack may have been "over a debt or some other issue".
He said Mr Habiyakare was known to police and had a history of involvement with drugs.
"However he was also much loved by his family and friends, all of whom are still grieving his loss and searching for answers as to why this has occurred."
"We need to speak to anyone who can shed light on the motive for the shooting and why Chris might have been targeted."
Family 'broken' by young rapper's death
Chris Habiyakare's father Belthrand Habiyakare said his family had moved to Australia from Tanzania in 2007, but his son had drifted away from the family after he was expelled from school.
"In the last two years he has been able to sit with us, come visit our family, we had even some lunch together. That was a miracle," he said.
"I realised after he was dead that he produced a lot of music that I didn't get to watch."
Mr Habiyakare said the death of his son had devastated his family, and he now feared for the safety of his other children.
"This is the first time in my life that I've felt defeated," he said.
"I've always done everything to really be able to overcome everything but this time around, this event has broken me down into small pieces."
Anyone with information is urged to call CrimeStoppers on 1800 333 000.
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