Prosecutors said Tuesday in court documents that for the first time reveal a possible motive, that two Iowa teenagers killed their high school Spanish teacher last year out of frustration over a bad grade.
The documents were filed ahead of a hearing Wednesday in which a judge will hear arguments on whether to suppress any of the evidence against Willard Miller and Jeremy Goodale, who are accused of murdering high school Spanish teacher Nohema Graber in Fairfield.
Miller’s attorney is requesting that the Fairfield County Superior Court invalidate four search warrants and suppress evidence from Miller’s home, comments he made to police, and information obtained from his cellphone and the social media platform Snapchat.
Graber’s body was found in a Fairfield park Nov. 3, 2021, hidden under a tarp, wheelbarrow and railroad ties. She had been beaten to death with a baseball bat. Miller and Goodale were 16 at the time.
Fairfield is a town of about 9,400 people that’s some 100 miles from Des Moines.

Investigators found that Miller met with Graber at Fairfield High School on the afternoon of Nov. 2, 2021, to discuss his poor grade in her class. Graber later drove her van to a park where she was known to take daily walks after school, authorities say. Witnesses saw her van leaving the park less than an hour later with two males in the front seat.
The van was left at the end of a rural road. After getting a phone call from Goodale, a witness later picked up Goodale and Miller as they walked to town on that road, investigators say.
In a police interview, Miller described the frustrations he had with the way Graber taught Spanish and over how the grade in her class was lowering his GPA.
According to court documents filed by Jefferson County Attorney Chauncey Moulding and Assistant Iowa Attorney General Scott Brown, “the poor grade is believed to be the motive behind the murder of Graber, which directly connects Miller.”
According to court documents, Miller initially denied any involvement in Graber’s disappearance but “later stated he had knowledge of everything but did not participate.” He told cops that the real killers, a “roving group of masked kids,” forced him to provide a wheelbarrow to help move her body and drive her van out of the park.
According to the documents, a witness provided photos of a Snapchat conversation “that identify Goodale’s admissions that he acted in collaboration with another person to cause Graber’s death.”
The witness identified Goodale as making statements that implicate both Goodale and Miller by name.
Miller’s lawyer, Christine Branstad, says that the search warrants were issued illegally in part because “law enforcement failed to provide information to the issuing magistrate to show the informant is reliable or that the information from the informant should be considered reliable.”
Miller is scheduled for trial on March 20 in Council Bluffs, and Goodale’s trial is Dec. 5 in Davenport.
Both teenagers, who are now 17 years old, will be tried as adults. A first-degree murder conviction in Iowa carries a life sentence in prison. Juveniles convicted of even the most serious crimes in Iowa must be given a chance at parole, according to Iowa Supreme Court rulings.
According to the school’s website, Graber, 66, had been a Spanish teacher at Fairfield High School since 2012.
“To know Nohema was to love her — she was the kind of person every community longs to have in its midst, and we were blessed to have her in our lives,” Graber’s family said after her death in a statement. “She dedicated her life to her children, family, and faith.” Her next priorities were her job as an educator and the children she taught, her local Parish, and the Spanish-speaking community in Fairfield.”