This is from Good Morning America.

To the Idaho student murders case and potential new evidence against the suspect, his homework.

Kana Whitworth joins us with the details. Good morning, Kena.

Yeah, Rebecca, good morning to you. So that new evidence is helping prosecutors hone in on the former PhD students' classwork,

specifically his crime scene scenario final.

But Brian Coburger's lawyers say that early in his education, he was treated as a child with

special needs. But now, with just a few months until trial, it's all under the microscope.

This morning, prosecutors in the Idaho College murderers case saying Brian Coburger's homework could play a crucial role in the trial.

In a new filing, prosecutors say the alleged killer turned in what amounts to be a crime scene how-to guide as part of a homework assignment in 2020.

Some of the details mirroring the Idaho College murder scene.

Prosecution is trying to make the argument that this information plays somewhat of a playbook

or not leaving evidence behind a crime scene.

The 12-page crime scene scenario final from his time at DeSales University, detailing how

an investigating officer would process a scene where a deceased white female had been found, including the use of

protective clothing to avoid contaminating the scene or leaving fingerprints. While Coburgers lawyers

say he is innocent and argue he has a developmental disability that prevents him from having

the speed and coordination to carry out the murders, prosecutors point to purchases he made,

including a balaclava, a type of ski mask that covers

the head, but not the eyes.

They say he bought it in January of 2022.

Prosecutors sharing this never-before-seen image drawn by the surviving roommate in the days

after the murders showing what they say.

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