Detectives are appealing for community assistance as they continue investigations into the deaths of a 45-year-old man and 4-year-old boy at Rossville in Far North Queensland on Friday.
Police discovered the bodies of Troy Harvey and his son at a River Road property in Rossville, despite continued efforts by officers and paramedics both were declared deceased.
A 36-year-old woman contacted police on Friday morning to report an assault the previous night by the 45-year-old man.
Two crime scenes established at the River Road property and another local residence were examined as part of investigations.
Investigators are piecing together a timeline of events and are seeking public assistance to fully understand the circumstances leading up to the deaths.
Detective Inspector Jason Smith said investigators are seeking the assistance of anyone who may have had contact with Troy Harvey between August 28 and September 4.
"In particular police wish to speak to the driver of a silver vehicle that attended Mr Harvey's address in River Road on the morning of Friday, September 4, 2020," Detective Inspector Smith said.
"People in Rossville have been devastated by these tragic events, I would personally like to thank them for the enormous amount of assistance they have provided to police."
Investigations are continuing.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.
You can report information about crime anonymously to Crime Stoppers, a registered charity and community volunteer organisation, via crimestoppersqld.com.au 24hrs per day or call 1800 333 000.