TrueAllele solves 1963 Winnebago cold case using “inconclusive” DNA

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People of New York v Ade Ngaii

TrueAllele connects construction hat and vest to murder suspect

Crime On November 2, 2018, two men disguised as construction workers entered the home of Kristopher Appel to steal money and drugs. During the home invasion, the men fatally stabbed Mr. Appel.
Evidence Police collected a construction vest and hard hat from the crime scene near the victim’s body.
DNA The Suffolk County Medical Examiner’s Crime Laboratory produced DNA data from swabs of the vest and hard hat.
Match The crime lab concluded that the DNA results from these items were inconclusive due to the poor quality or complexity of the data.
TrueAllele On the same DNA data, TrueAllele found that a match between the hard hat and suspect Ade Ngaii is 2.28 billion times more probable than a coincidence. The computer also found that a match between the vest and suspect Ngaii is 1.05 thousand times more probable than a coincidence. The error rate for the vest and suspect match statistic is 1 in 7.92 thousand.
Cybergenetics    On February 15-16, 2023 Cybergenetics analyst Jennifer Bracamontes testified before a Suffolk County jury about the TrueAllele DNA results.
Outcome On February 24, 2023, the jury found Ade Ngaii guilty of second degree murder. He was sentenced to 25 years to life in prison on March 27, 2023.
Media

  • Suspect Nabbed For 2018 Shooting Death Of Long Island Man, Police Say - Daily Voice
  • NYC Man, 37, Arrested In 2018 Long Island Murder: Suffolk Police - Patch
  • Harlem Man Charged With Cold Case Long Island Murder - Patch
  • Harlem Man Found Guilty Of Murder For A 2018 Deadly Home Invasion - Suffolk County District Attorney's Office
  • Ade Ngaii of Harlem convicted of second-degree murder in death of Kristopher Appel during 2018 home invasion - Newsday
  • NYC man sentenced to 25 years to life for fatal Long Island home invasion - Fox News