Danny McKay, 36, was shot dead at his home on Longlands Road in Newtownabbey last Thursday at 20:30 BST.
Before the murder, five masked men entered a house at Dunore Court in Belfast's New Lodge and forced the occupant to hand over his VW Bora.
At 20:50 BST the VW was found burnt-out in Ardmoulin Place in the Falls. Police believe the incidents are linked.
Detectives from the PSNI's serious crime branch, working with uniformed officers, returned to all three locations on Thursday to talk to local people and passers-by.
The officer leading the investigation, DCI John McVea, said: "We have made a number of arrests but this investigation will continue for some time. This was a brutal murder and we are asking for people's assistance."
He said they were also keen to speak to anyone who may have seen a dark coloured saloon car "being driven in a suspicious manner" in the Longlands area in the days before the murder.
"Our final appeal is about a man with a light-coloured top seen running away from the burning car at Ardmoulin Place. If you can provide information about this, we need to hear from you," he added.
A 25-year-old man was arrested by police on Thursday morning in north Belfast and is being questioned about the murder at Antrim police station. A number of other people arrested in connection with the killing have been released.

The suspension was cut following a hearing at Wembley on Thursday.
Andrew, 29, was not punished for the incident during the game on 29 October, but was later cited after a Football Association video review.
The usual punishment for violent conduct is three games, with Andrew's initial 12-match ban one of the longest handed out in English football.

Police were alerted to the stabbing in Harehills Lane, Harehills, at about 15:40 GMT.
The wounded teenager was taken to hospital for treatment, but died a short time later.
A 15-year-old boy has been arrested on suspicion of murder, West Yorkshire Police said. He remains in custody for questioning.
Det Supt Pat Twiggs, of West Yorkshire Police, said: "This tragic incident happened in a busy area at a busy time of day with large numbers of people going about their daily business.
"I am appealing directly to anyone who witnessed the incident or has information that could help our inquiries to come forward."
The force is hoping to speak to anyone who saw a person running in the area or those who have mobile phone footage.
The scene remains cordoned off, with police forensic examinations expected to continue over the weekend.

Walter Innes and fellow Shorewatch volunteer Monika Carrie were about to head home after an eventful day "staring at an empty sea" on Tuesday.
They then spotted what looked like a dolphin feeding frenzy and Mr Innes took a picture, believing it to be of a dolphin taking a large salmon.
Expert Charlie Phillips said such attacks were not completely understood.
Mr Innes took his picture at 18:04 on Tuesday just outside the south breakwater at Aberdeen Harbour.
He said: "Monika Carrie and I had been staring at an empty sea for a while and were just about to leave.
"We saw what we thought at first was a feeding frenzy, and went down on the rocks to try and get pictures. I thought it was a very large salmon, until I got home and saw it on the computer screen.
"You hear and read about this behaviour, but to see it on the doorstep is stunning."
Mr Phillips, a Highlands-based Whale and Dolphin Conservation field officer who monitors the Moray Firth's resident population of bottlenose dolphins, said: "It's not completely understood why some bottlenose dolphins attack harbour porpoise like this.
"The example in Walter's great pictures show that it's normally small porpoise, often calves, that seem to be targeted.
"One day we might have a better understanding of this behaviour but until then we can only make guesses or speculation."
Mr Phillips added: "It does happen frequently, as the pathologists at the whale and dolphin strandings department of Scotland's Rural College have carcasses of porpoise showing clear signs of bottlenose attack to examine, and they are massive injuries that have been sustained."
Police investigating the murder of a Newtownabbey man have re-visited three scenes connected to the killing.
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Rochdale striker Calvin Andrew's 12-match ban for elbowing Oldham defender Peter Clarke has been reduced to nine.
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A 16-year-old boy has died after he was stabbed in a busy Leeds street, prompting a murder inquiry.
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A whale and dolphin-watcher has photographed an attack by a bottlenose dolphin on a porpoise off Aberdeen.