David Alexander Mitchell, 48, was last seen at a residence on Whites Mountain Road in Whites Mountain, New Brunswick, on September 9, 2024. He had been staying at a camp in the area for work. Family members reported that he went uncharacteristically silent after that day, and his mother became concerned when two weeks passed without contact. He was reported missing to the Sussex RCMP on September 25, 2024.

At the time he was last seen he was about six feet two inches tall, approximately 180 pounds, with hazel eyes, grey hair and a grey goatee. Police say his bank account and phone showed no activity after September 9. Friends, family and community volunteers searched the surrounding area while investigators followed various leads and tips but found no result.

In September 2025 the New Brunswick RCMP Major Crime Unit took over the inquiry, citing several unanswered questions; further police operations in Whites Mountain occurred in December 2025. The disappearance remains an open investigation. If anyone saw David, knew his movements around Whites Mountain, or has information that could help, please come forward.