Thomas Ernest Brock was last seen in early summer 1999 in the Goose Lake and Barrhead areas of Alberta. He was 45 years old and described as Caucasian. Family and friends say his silence was uncharacteristic; by September 1999 they had reported him missing to the Barrhead RCMP after repeated attempts to contact him failed.

An investigation was opened by the Barrhead RCMP but produced no public breakthroughs and the case went cold. The disappearance has left unanswered questions for those who knew him.

If anyone had contact with Thomas in 1999, or recalls seeing him in the Goose Lake or Barrhead area that summer, please come forward with information.