Emotions ran high at Lake Cargelligo's Australia Day event and even at Sydney’s Invasion Day protests for the slain victims of the 21 January shooting murders of three locals.

Thousands paid tribute to the locals in Sydney, many rallying against domestic violence.

Sophie Quinn, 25, and her friend John Harris, 32, were found dead with gunshot wounds inside a car.

Sophie's ex-partner, Julian Ingram, had been recently released on bail for domestic violence offences and was identified by witnesses as the shooter.

Sophie’s aunt Nerida Quinn was also shot dead the same day while 19-year-old Kaleb Macqueen was seriously injured. 

Mr Macqueen has told media he saw Ingram drive up to the home of Nerida Quinn, his friend’s mother, before opening fire. 

“She obviously went towards the ute,” Mr Macqueen told media. 

“I heard boom boom … she was holding her neck and he was laughing and gave her one good shot to the head and she was gone.” 

The search for the alleged murderer Julian Ingram is currently focused on area near Mt Hope.  

It's day 6 of the search. 

Assistant Commissioner Andrew Holland said CCTV footage has identified the vehicle driven by the alleged offender, a white, single cab Ford Ranger with the number plate DM0 7GZ. 

“If anyone has information related to this vehicle, could they contact triple-0 or Crime Stoppers immediately. We are seeking where this vehicle is immediately,” he said. 

Police also announced Ingram is believed to be “on his own at this present time”. 

“But again, we can’t rule out the possibility that he’s being assisted by others,” Assistant Commissioner Holland said. 

The police commissioner says every property has been up-ended and searched. 

Services are supporting community members in Lake Cargelligo.