On July 7, 2011, in the Siksika Nation, 69-inch, 141-pound Dillon Jay McMaster was swept underwater by a strong current while swimming in the Bow River with friends. He was last seen wearing a green shirt and blue shorts. Immediate searches followed: friends and community members searched, and the Gleichen RCMP launched search and rescue operations that scoured the river and banks.

Despite extensive, multiple efforts, Dillon did not resurface and was never located. The official searches were eventually concluded and his family and community were left without closure; he is presumed to have drowned. Few other public details are available about the incident or its timeline.

Did anyone in the Siksika Nation or the Bow River area at that time see anything that could still help explain what happened?