: ## Analysis of Source Material
1. core Topic & Intended Audience:
The core topic is the shift in the inquiry into the disappearance of four-year-old Gus Lamont in South Australia.The investigation has moved from a missing person case to a major crime investigation, with a person residing at the family property now considered a suspect.
The intended audience is the general public, particularly those following the case or interested in Australian news, true crime, and missing persons investigations. The tone is serious and informative, aiming to update the public on the developments in the case.
2. Optimal Keywords:
* Primary Topic: Missing Person Investigation / Criminal Investigation
* Primary Keyword: Gus Lamont
* Secondary Keywords:
* South Australia
* Missing Child
* Oak Park Station
* Yunta
* Police Investigation
* Major Crime
* Disappearance
* Outback
* Suspect
* Darren Fielke (Investigating Officer)
Worth a look