Queensland Police say they have recovered the gun they believe was used to shoot a Mackay mother dead in her driveway last week – also making another disturbing find.

Ryan Geoffrey Cole is accused of shooting his 34-year-old neighbour Natalie Frahm in front of her daughter and another girl last Wednesday afternoon.

Police allege Cole then also turned the gun on good Samaritan James McGill, who rushed to Frahm’s aid.

On Monday, police said a search of Cole’s Mackay home had turned up a 22-calibre pistol.

“Preliminary advice from forensic examinations and ballistic experts lead police to believe that this is the weapon used to fatally wound Natalie Frahm and to injure James McGill,” Detective Acting Superintendent Emma Novosel said.

It was one of three firearms found in the search. The others were a homemade inoperable long-arm rifle and an air rifle.

“None of the weapons located at that residence are currently, nor have they been, previously registered,” Novosel said.

“Investigations are ongoing into the origin of the pistol and how it came to be in the possession of the defendant.”

Cole’s firearms licence was revoked three years ago, with 12 weapons removed from him at the time. Novosel said the discovery could lead to further charges against the accused killer.

She said police were also reviewing CCTV footage leading up to last Wednesday’s shooting.

“We have certainly obtained a lot of CCTV both from homes and businesses around the area and we’ve been able to determine some of Mr Cole’s movements to a certain extent,” she said.

“I would urge anyone from the community who does have CCTV or dashcam footage that may help us to contact police.

“The public’s been very generous in contacting us to provide information and assistance … It’s been outstanding.”

Natalie Frahm was shot dead as she sat in her car in her driveway. Photo: Supplied

Cole, 31, is accused of fatally shooting Frahm as she sat in a car ready to take the two girls – aged 11 and 12 – to a sporting activity. He then allegedly shot 66-year-old McGill after the terrified girls fled the vehicle and raised the alarm.

Frahm and her family reportedly lived next door to Cole, but did not know him.

Elsewhere, Queensland MPs are being asked to back a bill that will strengthen gun laws after the north Queensland tragedy. Police Minister Mark Ryan has urged support for the bill, which would allow warrantless searches by police for illegal weapons on “high-risk” individuals.

The legislation – introduced to parliament in May and to be debated later this year – addresses the “increasing risk of firearm-related offences”.

Reported offences involving firearms in Queensland rose by 30 per cent in the past decade, with more than 3000 in 2023.

Premier Steven Miles said he would consider any changes to keep the community safe.

“It’s not the case that changing the regulation of firearms wouldn’t necessarily have prevented this awful murder,” he said on Friday.

“But we do have changes to the firearm laws before the parliament right now.

“If there are any changes required to keep the community safe of course we’ll consider that.”

Tributes have poured in for Frahm after the “horrific tragedy”.

“I don’t think there’s a single person in Queensland whose heart doesn’t break for Natalie and her family and friends and this community,” Ryan said.

The two girls and McGill have also been praised for their bravery. McGill was allegedly shot by Cole, suffering hand and chest injuries but was in a stable condition in hospital late last week.

Cole sparked an emergency lockdown and police manhunt before being charged with murder and attempted murder. He has been remanded in custody.

-with AAP