“We have prepared the family for the fact that we might not be able to find Gus alive.” A search crew looking for a missing little boy near Yunta in South Australia’s outback has discovered a single footprint 500m north of the homestead that matches the size of a small boot. Police admit that time is running out to find four-year-old Gus safe and well – he has been without food, water and shelter for 90 hours. tinyurl.com/5fry7xek #Yunta #7NEWS | 7NEWS Adelaide