In 1991, a young pregnant woman named Pamela McCall was found murdered along Interstate 65 in Tennessee. Investigators carefully collected evidence, but despite their efforts, the case eventually grew cold.

Hundreds of miles away in Wyoming, two unidentified women—known for decades only as "Bitter Creek Betty" and the "Sheridan County Jane Doe"—were waiting for their names to be restored.

For more than thirty years, these cases remained unsolved.

Then science caught up with the evidence.

In this episode of Cold World Crime Time, Michelle follows the extraordinary investigation that used modern DNA technology and investigative genetic genealogy to identify the victims, uncover a suspect, and bring long-awaited justice in one of America's most remarkable col ...