Senior investigating officer Det Ch Insp Matt Gillooly, said: “First and foremost, my thoughts are with Ernest’s family at this unimaginably difficult time. We will continue to support them.
“Our hard work will also continue as we remain focused on determining Ernest’s final movements, so that we can achieve answers and justice for his family.”
Officers previously appealed for anyone who saw smoke or a fire near the nature reserve in recent months to come forward.
During the Park Run on the common on 11 October neighbourhood policing officers spoke to participants and put up posters with QR codes linking to a website, external where people can submit information.
