WARNING: Aboriginal and Torres Strait Islander readers are advised the following article contains the name of an Indigenous person who has died.

A deployment of more than 100 police officers to a remote region will be maintained until an accused triple killer is captured.

NSW Police Commissioner Mal Lanyon vowed on Thursday to find the fugitive Julian Ingram, who remains at large.

Ingram is alleged to have fatally shot three people, including his pregnant former partner Sophie Quinn and her aunt Nerida Quinn, in the western NSW town of Lake Cargelligo on January 22.

"I want to make sure that not only are you safe, but you feel safe," Mr Lanyon said.

"You will continue to see a significant policing presence until such time as we put Mr Ingram before the court."

Specialist riot squads will be deployed to assist in the search, which has entered its second week, and all leads are being investigated, police said.

Assistant Commissioner Andrew Holland said the latest sighting was of a rider on a red motorcycle but could not confirm it was Ingram.

Mr Holland noted the getaway ute the 37-year-old had been driving could be hidden.

"He'd be mad if he was still using his original ute. But if he's got other vehicles involved, we want to make sure we are investigating any lead that we have," he said on Thursday.

Police warned they would arrest and prosecute anyone helping the experienced council worker to access food and water, amid a heatwave across the outback region.

The tricky terrain with ample hiding spots between sheds and vast properties, some of which exceed 160 square kilometres in size, is posing challenges for officers.

"All members of the community should exercise extreme caution," Mr Holland said.

"They need to be aware that there is a gunman on the loose in their area. Again, we ask them not to approach this person."

Meanwhile, the women's friends and family have since asked the public for donations as the manhunt continues.

"Nerida and Sophie will be missed by so many," family friend Leisa-Ann Kilby said online.

The fundraiser had topped $15,000 by Tuesday afternoon

Ms Quinn, 25, and her friend John Harris, 32, were killed when bullets were fired into a dark hatchback on Bokhara St about 4.20pm.

Soon after, her aunt, 50, was shot dead at a home on Walker St, a two-minute drive away.

A 19-year-old man was also shot at the home but survived and is in hospital in a serious but stable condition.

Suspicion and tensions are high as the search for the alleged triple killer enters a second week.

A sudden, massive police presence in the town of about 1000 people has prompted authorities to reassure locals.

The possibility of the council gardener having high-powered guns was likely to increase tension on remote farms and stations, police veteran and criminology academic Vincent Hurley said.

However, the targeted nature of Ingram's alleged killings should lessen the threat of more violence, he said.

"The community could feel slightly reassured that he's not after a random individual," Dr Hurley said.

The openness of the terrain, particularly compared to the alpine country search for fellow fugitive Dezi Freeman in Victoria, should allow police to conduct a more thorough search for longer.

Domestic and family violence remains a scourge on the community and its eradication was a personal focus, the state police commissioner said.

"A tragedy like this brings domestic and family violence into the picture even more," Mr Lanyon said.

"We will work right across government to make sure all possible services (in the regions) are available."

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Australian Associated Press