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LANCASTER, Pa. (CBS) — Police in Lancaster say they’ve cracked a cold case with some help from an unlikely source.

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Raymond Rowe is accused of raping and killing Christy Mirack in 1992.

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Investigators had DNA from the murder scene, but they were only able to identify Rowe as a suspect after one of his relatives provided their DNA to a genealogy website.

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The break in the case came last month, when undercover detectives obtained Rowe’s DNA from a piece of gum and water bottle he threw out.