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Clothing Mixture Had “Inconclusive” Minor Components - TrueAllele® Re-interpretation Connected a Suspect to the Crime and Led to a Plea

Case summary

Jean Paul Page was found strangled and stabbed to death during a robbery attempt. The lab’s manual mixture interpretation on portions of the victim’s clothing matched the victim, but the minor components were “inconclusive.” TrueAllele interpretation on the lab data produced an inclusionary match statistic connecting the clothing mixture to a cast-off suspect comparison sample from Richard Bennett. Police arrested the suspect, and he later pleaded guilty to manslaughter.

What the lab report said

  • The lab's manual analysis found a match between the evidence and the victim, but stated the minor components of the mixture were “inconclusive.”

Why this mattered for the investigation

  • In homicide cases, clothing mixtures can contain a small amount of a contributor DNA that gets labeled “inconclusive” and ignored. But that minor component can still help connect or exclude a person of interest when interpreted using computer methods.

What was submitted

  • The lab’s electronic DNA data from the clothing mixture.
  • A suspect comparison profile from a cast-off sample.

What changed after TrueAllele interpretation

  • TrueAllele generated an inclusionary match statistic connecting the minor contributor from the victim’s clothing to the suspect.

Outcome

  • Police arrested the suspect, and he later pleaded guilty to manslaughter with a sentence of 10 years less time served.

Case Takeaways

If your homicide evidence includes clothing mixtures and the lab report says “minor components are inconclusive” (or similar language):

  1. Request the electronic DNA data files (.fsa or .hid) for the key items (door handles, steering wheel, seatbelt, etc.) and reference profiles, including allelic ladder files.
  2. Request a Free TrueAllele screening of the clothing data (the ones most likely to carry the minor contributor).
  3. If you have a strong person of interest, include the comparison sample you have for screening.

For more information on what to request from the lab, see the Sending Cases for TrueAllele Processing page.

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We don’t retest physical evidence items. We interpret the electronic DNA data a lab already generated.