Details continue to emerge in the case of two Iowa teens accused of killing their Spanish teacher last month.

In a new filing this week, Jefferson County Attorney Chauncy Moulding stated that Willard Noble Chaiden Miller and Jeremy Everett Goodale, both 16, stalked 66-year-old Nohema Graber before her death. They mapped out her daily schedule, then analyzed the times she left for a walk, AP reports.

As CrimeOnline previously reported, Miller and Goodale are accused of killing Graber on November 2. Both teens were students at Fairfield High School in Fairfield, where Graber had been teaching Spanish since 2012.

According to a criminal complaint, both suspects appeared to know the specific details regarding Graber’s death, as allegedly evidenced through a social media exchange. The exchange included how the teacher died, Miller’s involvement, and the motive, although authorities have not released information on a specific motive.

Police found Graber’s remains on November 3 at the Chautauqua Park in Fairfield. The motive behind the murder remains unclear.

Investigators obtained search warrants for both suspects’ homes and found clothing that appeared to have blood on them. A witness who knew the suspects told police they saw the suspects at the park on November 3.

Miller ultimately admitted he was at the park and gave investigators details on how the crime happened and how it was covered up, according to the criminal complaint.

“A search warrant was then executed by Jefferson County police, who searched Goodale’s residence, uncovering ‘multiple clothing items appearing to have a substance consistent in appearance with that of blood,” the complaint read.

Police found Graber’s body “concealed under a tarp, wheelbarrow, and railroad ties.” The criminal complaint stated Graber had head trauma.

Both suspects remain behind bars in adult jail on a $1 million cash bond, each.

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[Feature Photo: This undated photo provided by the Assistant Jefferson County Attorney, in Iowa, shows Willard Noble Chaiden Miller. Court hearings have been set for Nov. 12, 2021, for Miller and another teen charged with murder in the death of high school Spanish teacher Nohema Graber. (Assistant Jefferson County Attorney via AP)]

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