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Baby Rebecca cold case suspect taught deaf children for 41 years
AZ Family ^ | April 16, 2026 | Micaela Marshall

Posted on 04/17/2026 7:00:06 PM PDT by TheDon

Arizona’s Family has learned new information about the life an Arizona woman had after she allegedly killed her baby 45 years ago in North Dakota.

Investigators said Nancy Trottier, 65, lived a life of serving the disabled following the alleged crime.

She had no criminal history when she was arrested in Arizona last week and is charged with murder.

For 41 years, Trottier was a teacher at the North Dakota School for the Deaf. She is a mother of four who has dedicated her life to teaching children with disabilities.

The baby, whom police named Rebecca, was discovered in the woods on the Valley City State University campus in April 1981. The body had plastic covering her face, and the umbilical cord was still attached.

Advancements in DNA cracked the cold case. During an interview with investigators, Trottier said, “Maybe it was me,” according to court documents.

“The defendant’s DNA was also confirmed to be present on items found at the location where the victim was located, including on a fingernail clipper and other items that contained human blood,” said Barnes County State’s Attorney Tonya Duffy during Trottier’s first court appearance.

According to court documents, Trottier was attending Valley City State University and dating her now-husband when she gave birth and shortly afterward suffocated her daughter.

“When the defendant was set to meet with law enforcement again to go over DNA findings, law enforcement learned that she had attempted suicide,” Duffy said during Trottier’s first court appearance.

The mystery of what happened to Baby Rebecca haunted the small North Dakota town.

“It’s been a long, trying ordeal,” said Lance Peterson, a Valley City resident.

Detectives believe that after the crime, Trottier finished school and went on to lead an exemplary life. She had four more children and taught children who were hard of hearing. After retiring in 2024, she moved to Sun Lakes in the East Valley with her husband.

“It’s a terrible decision that she made. It is a life that is lost, but it’s also been 45 years. And I think she’s been spending each of those years, at first intentionally and then later unintentionally, thinking that if she does more good, it will offset the bad thing that she did when she was in her early 20s,” said John Delatorre, a forensic psychologist.

He said he suspects Trottier’s actions were motivated by fear and self-preservation.

“It’s easy to sort of just say that it’s the person’s disposition that she must be a psychopath or a cold-hearted woman or something like that when the evidence tells us that that’s not true. She made a choice and she needs to pay the price for that choice. But we are much more complex than just one behavior that we engaged in 40 years ago,” said Delatorre.

Trottier is in custody awaiting a hearing in May.


TOPICS:
KEYWORDS: arizona; coldcase; dna; genealogy; helixmakemineadouble; murder; nancytrottier; northdakota; whinyliberals

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To: TigersEye
That is how you turn away from sin.

Did you think it was just skipping off into the sunset? As long as you did not brutally murder any more of your babies it was all ok?

41 posted on 04/18/2026 2:19:38 PM PDT by Harmless Teddy Bear (The tree accused of killed Sonny Bono was planted.)
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To: E. Pluribus Unum
So thinking baby murder is wrong is "anarcho-tyrannist"?

Not quite the stupidest thing you have said on this thread but real close.

42 posted on 04/18/2026 2:21:36 PM PDT by Harmless Teddy Bear (The tree accused of killed Sonny Bono was planted.)
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To: Secret Agent Man

“Thats not the part I was talking about.”

You ducked my question ...


43 posted on 04/18/2026 2:23:00 PM PDT by TexasGator (-11..)
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To: Harmless Teddy Bear

That’s not what I said Captain Strawman.


44 posted on 04/18/2026 3:01:30 PM PDT by E. Pluribus Unum (If it ain't fun, you ain't doin' it right.)
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