Case No. 19: Clark Perry Baldwin: The Highway Killer – How DNA Solved a 30-Year Mystery

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 cold case investigations.

This documentary-style episode explores:

• The life of Pamela McCall and the investigation into her murder.
• How two unidentified women in Wyoming were finally identified as Irene Vasquez and Cindi Arleen Estrada.
• The role of investigative genetic genealogy in solving decades-old crimes.
• The evidence that led investigators to Clark Perry Baldwin.
• The Tennessee murder trial and guilty verdict.
• Baldwin's death in 2025 before he could stand trial in Wyoming, and what that meant for the remaining cases.
• Why preserving evidence—and refusing to give up—can make justice possible, even after decades.

At Cold World Crime Time, we believe every victim has a story, every investigation matters, and every name deserves to be remembered.

If you enjoyed this episode, please follow, rate, and review the podcast wherever you listen. Your support helps us continue telling the stories of victims who deserve to be remembered.

Sources: Court records, law enforcement agencies, forensic reports, and publicly available investigative records were used in the preparation of this episode. Additional source material is available in the episode notes.

Cold World Crime Time is hosted by Michelle and is dedicated to thoughtful, factual storytelling that honors victims, supports their families, and explores the investigations that seek the truth.

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