1992 death's of Native American couple still unsolved

The location is Lake Andes, South Dakota on the edge of the Yankton Sioux Indian Reservation (December 1992). Arnold, Ruby and Tracy are trapped inside their car after it turned over in a frozen water ditch. Tracy is left inside the car until someone finds her. Arnold and Ruby disappeared until the Spring when the ice melted. That's when their dead bodies were found. However, Arnold was seen three weeks after the accident on New Year's Eve. He was at the wheel of a different car with other natives. Ruby was not with him...,

"Unsolved Mysteries" with host Robert Stack had covered the native deaths back in the mid-1990's. When the TV show was revived with host Dennis Farina in 2008. The producers repeated the episode with old footage and interviews. "Bloggers" and "YouTube" arm-chair detectives have put in their own theories. The death's of Arnold Archambeau and Ruby Bruguier is still a mystery in 2017...,

Watch below for "Unsolved Mysteries" Season 3 and Episode 2. It also has several other mystery segments.