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Commonwealth of Virginia v Jonathan Nathaniel Ramsey

Teenager abducts five year old girl

Crime On August 27, 2011, a child, 5, was abducted from her Springfield, VA home, molested in the nearby woods, and then repeatedly stabbed with a kitchen knife.
Evidence Boxer shorts were found in suspect Jonathan Nathaniel Ramsey's trash.
DNA Virginia's Department of Forensic Science developed DNA data from a stain on the boxer shorts.
Match The lab's manual analysis could not produce a match statistic.
TrueAllele On the same DNA data, the computer's statistic connecting the boxer shorts stain with the victim was 73 thousand.
Cybergenetics    On June 12, 2012, Dr. Mark Perlin testified at the trial about the computer's DNA match statistic.
Outcome Jonathan Nathaniel Ramsey was convicted of abduction, intent to defile and other charges. He was sentenced to 33 years in prison.

  • Fairfax girl, 5, abducted from bedroom, assaulted Washington Post
  • Five-year-old girl abducted from Springfield home NBC Washington
  • Trial begins for teen accused of abducting and assaulting child in Fairfax County Washington Post
  • Jonathan Nathaniel Ramsey convicted of attack on 5-year-old Springfield girl Washington Post
  • Ramsey v. Commonwealth FindLaw