cold cases

An investigator "with a bit of free time" decided to send for testing DNA samples from a long-dormant cold case, which led authorities to arrest a pair of men linked to the 1973 shotgun slayings of two young girls, authorities said.

Police in Oklahoma and California arrested the two 65-year-old suspects Tuesday morning for the murders of Valerie Janice Lane, 12, and Doris Karen Derryberry, 13.

The remains of a woman found south of Muskogee in 1983 have been identified as a woman who went missing in Tulsa in 1981.

The remains were identified through DNA testing as 44-year-old Francine Frost.

Muskogee County District Attorney Orvil Loge says Frost went missing on February 16, 1981. Her car was found in the parking lot of the Skaggs Alpha Beta grocery store at 21st Street and Memorial Drive in Tulsa.

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."