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David Black gets two consecutive life sentences

Arlington, VA

In 2015, David Black fatally stabbed psychologist Bonnie Black, his estranged wife, in her Arlington home as their young children slept nearby. Cybergenetics Dr. Mark Perlin testified at the November trial about DNA evidence. TrueAllele computing connected the killer to mixed DNA left on a bedroom light switch. The jury convicted Black of first-degree murder.

On February 9, the judge sentenced Black to two consecutive life sentences. "Unfortunately nothing can bring Bonnie Black back to her loving family, colleagues and friends," said Arlington County Deputy Chief Daniel J. Murray, "but it is our fervent hope that we have been able to provide them with some closure."


  • Virginia man convicted of killing his wife - Cybergenetics
  • Estranged husband gets two life sentences for fatally stabbing his wife in 2015 - Washington Post
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