Stewart Simmons & Margaret Walden (Ace of Diamonds & Hearts, Colorado)

The bodies of Stewart Simmons and Margaret Walden were found in the fall of 1982 on the banks of the San Juan River, right where Colorado meets New Mexico. For years they went unidentified, and were even buried without names to mark their graves. When a Colorado detective decided to find out who they were, he would go on to find out even more … uncovering their names, their stories and the likely truth behind their murders, decades after they were killed.