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Story summary
- Floyd William Parrott, 64, is charged with capital murder in Houston for the 1990 killings of Cheryl Henry and Andy Atkinson.
- DNA evidence linked him to the crime, and authorities arrested him in Lincoln, Nebraska.
- Authorities say he may have more victims and are asking the public to provide information.
- The couple were found dead in their car on August 23, 1990, after a security guard saw the vehicle stationary.
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