Benjamin Peter Entz was 47 when he was last seen on the evening of September 18, 2011, leaving the Waldeck Hutterite Colony in rural Saskatchewan. He had been born and raised at the colony and was operating a tractor when he departed. The tractor was found the next day but there was no sign of Entz.

At the time he went missing he was described as about 5 feet 9 inches, slender, around 170 pounds, with brown hair and brown eyes. He was wearing a grey western-style button-up shirt, black pants with suspenders, and a black felt fedora-style hat. Air and ground searches were conducted and investigators interviewed friends, family and neighbours, but no clues to his whereabouts emerged.

The investigation remains active and his disappearance is an open, unsolved case that periodically receives media attention. If anyone knew Benjamin, his routines, or saw him or the tractor around September 18–19, 2011, please share information with the investigators handling the case.