DNA from chewing gum leads to arrest in teacher's 1992 murder

Police say Raymond Rowe sexually assaulted and strangled Christy Mirack to death in December of 1992.
0:28 | 06/26/18

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Transcript for DNA from chewing gum leads to arrest in teacher's 1992 murder
And genetic testing just led to an arrest in the 1992. Rape and murder of a Pennsylvania school teacher. Detectives matched DNA found in Christine Eric's home to a man who lived a few miles away. With the help of the same technology used to track down the alleged Golden State killer. A popular DJ name's Raymond roe was arrested after a genealogy data base first identified a close relative and then eventually led police around.

This transcript has been automatically generated and may not be 100% accurate.

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