KEY POINTS:
Police have found shoes belonging to Warkworth teenager Luke Mason, who has been missing since July 20.
An elderly man had picked up the shoes from the roadside, unaware of their significance until police visited.
Police have found shoes belonging to Warkworth teenager Luke Mason, who has been missing since July 20.
An elderly man had picked up the shoes from the roadside, unaware of their significance until police visited.
There was a major emergency operation at Sydney airport this afternoon.