cold cases

Sheriffs' deputies who were testing a new sonar device on a lake in western Oklahoma's Custer County have come across two grim discoveries that may help solve two cold cases from decades ago.

The local Elk City Daily News says the "practice run for new sonar technology at Foss Lake became a recovery effort after officials discovered two vehicles submerged near the marina — with human remains inside."

It was Sept. 10, the newspaper says, when sonar detected "two cars side by side in about 12 feet of water."