A single fingerprint, lifted with a pipe cleaner and super glue, has led investigators to reopen a 30-year-old murder case.

The fingerprint was saved for three decades, and thanks to DNA testing, it could be the key that unlocks this case.

“I can’t help believe that somebody does know,” Lois Lawrence said.

Lawrence’s son, Robbie Lawrence, was a teacher and business owner running for Perry County school superintendent.

Robbie Lawrence was projected to win, but the Thursday before the election, he was shot and killed in his own home with a rifle.

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