Moscow, Idaho – Was the plea deal between convicted Idaho 4 killer Bryan Kohberger and the prosecution a serious mistake? Yes, says a criminal expert.

According to forensic psychologist Dr. Kris Mohandie, a crucial opportunity was missed amid the plea deal: Kohberger should have been required to give a full account of the stabbing murders of the four University of Idaho students.

Kohberger stunned the public when news broke that he is now trying to withdraw his confession and challenge his conviction.

He claims his defense attorney failed to represent him adequately and that he was misled about the consequences of his decision, as he continues to maintain his innocence.

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This, Mohandie says, is the flaw in the original deal. In his view, prosecutors should have forced Kohberger to detail the crimes before accepting his plea, thereby documenting his account and making any later reversal much harder.

"It was a real mistake and series of heavy mistakes by the DA's office to enter into this deal, because now here we are, putting the victims through all this again with having gotten nothing," Mohandie told Fox News.

He fears Kohberger could now claim he never provided any substantive details about the murders and was only coerced into a confession because of poor legal representation or other circumstances.

The investigators had found, among other things, Kohberger’s DNA on a knife sheath that was found at the crime scene. The piece of evidence was located in a bed where two of the victims were discovered.

Prosecutor Bill Thompson said after the conviction that they had not expected Kohberger to provide a full and truthful confession revealing the motives behind the crime. For Mohandie, however, that is not a sufficient explanation.

"It was ill-conceived, it was poorly designed, and at the end of the day, you know the victims are being re-traumatized by all of this," he said.

In his opinion, Kohberger's handwritten petition and the renewed public attention reflect personality traits he had previously suspected in Kohberger, such as a desire to outsmart the legal system while maintaining personal notoriety.

He therefore warns against portraying convicted offenders like Kohberger as fascinating or extraordinary personalities.