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Arizona woman charged with killing newborn child 45 years after body was found

Investigators linked the baby to Trottier through genetic genealogy and DNA testing, with results showing a 3.481 quadrillion-to-1 match, court documents said.

  • On Monday, April 13, 2026, Barnes County State's Attorney Tonya Duffy formally charged 65-year-old Nancy Jean Trottier with murder in the 1981 death of a newborn infant known as 'Baby Rebecca' found in Valley City, North Dakota.
  • Investigators reopened the cold case in 2019 using advanced DNA technology, eventually linking remains to Trottier, who told investigators, "Maybe it was me," during a 2021 interview according to court documents.
  • DNA analysis showed it is 3.481 quadrillion times more likely that Rebecca was the biological child of Trottier and her husband than an unrelated individual, according to court documents.
  • Judge Nicholas Thornton set bail at $2 million during Monday's initial court appearance, while Trottier's attorney, Luke Heck, argued she poses no flight risk and lacks criminal history.
  • A preliminary hearing and arraignment are scheduled for May 21, 2026, as North Dakota Attorney General Drew Wrigley emphasized that justice for the infant continues forward.
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Grand Forks Herald broke the news in on Monday, April 13, 2026.
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