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Army vet and ex-state trooper pleads not guilty in 1997 killing

Andrew Dykes, a retired Army instructor and former trooper, faces second-degree murder charges after DNA evidence linked him to the 1997 killing of Tanya Denise Jackson, a Gulf War veteran.

  • On Thursday, Andrew Dykes pleaded not guilty to second-degree murder in the 1997 killing of Tanya Denise Jackson after being indicted and extradited earlier this month at Nassau County court in Mineola.
  • The alleged motive centers on Jackson wanting to start a life with Dykes after their affair produced Tatiana Marie Jackson/Dykes, but prosecutors say he rebuffed her, prompting the killing.
  • Prosecutors say DNA from a cup and straw recovered at Charleys Cheesesteaks, Tampa, Florida matched semen found on Jackson's body, with Nassau County prosecutors conducting surveillance operations last year.
  • Prosecutors say Dykes is the suspected killer of his toddler daughter though he faces no charge for that death, and they asked that he be held without bail as LoPiccolo plans to challenge the DNA methods.
  • The remains first surfaced in 1997 and more fragments and the toddler's body appeared in 2011 amid the Gilgo Beach probe that uncovered 10 sets of human remains.
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NBC New York broke the news in New York, United States on Thursday, December 18, 2025.
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