Judge in Idaho student killings case asks Kohberger’s defense for more evidence to support ‘alternate perpetrators’ argument

Kaylee Goncalves
By Eric Levenson, Jean Casarez, Lauren del Valle and Rebekah Riess, CNN
(CNN) — Bryan Kohberger, the former criminology grad student accused of killing four University of Idaho students in November 2022, appeared in court Thursday morning in one of the last pretrial hearings before the start of his much-anticipated trial.
Kohberger, 30, was seen in the courtroom on the livestream seated in between his attorneys, wearing a white shirt and a dark, patterned tie.
He faces four counts of first-degree murder in the deaths of Madison Mogen, Kaylee Goncalves, Xana Kernodle and Ethan Chapin, who were fatally stabbed at an off-campus home in Moscow, Idaho, in the overnight hours of November 13, 2022.
Kohberger was arrested in the killings over a month later in his home state of Pennsylvania. A not guilty plea was entered on his behalf in May 2023.
Jury selection is scheduled to begin in late July, with the trial slated to start August 11. If convicted, Kohberger could face the death penalty.
The lurid case has riveted the public and has already been featured in multiple true crime documentaries. Still, prosecutors have not outlined his potential motive, and a sweeping gag order has kept the parties from speaking publicly, making each pretrial hearing an opportunity to quench the public’s thirst to learn more details.
Recent pretrial hearings have touched on the admissibility of key pieces of evidence, including Kohberger’s autism diagnosis, DNA analysis, his Amazon purchase history and a witness’s description of the suspect’s “bushy eyebrows.”
Kohberger’s legal team also has previously said it plans to present evidence of alternate perpetrators ahead of trial. Judge Steven Hippler on Thursday set a hearing on the issue for June 18. Hippler said he would seal the defense proffer about other suspects in the case and asked the defense attorneys to provide him “with whatever actual evidence you have that supports those allegations, rather than just allegations,” and to show that the evidence is admissible by May 23.
During Thursday’s hearing, Hippler broke down the trial process in stages, discussing matters including jury selection, hours for the trial and seating within the trial courtroom.
“I’m not a fan of surprises,” Hippler noted.
The judge directed to the defense team that he would like to get back from them a declaration of the last best offer – referring to a possible plea deal from prosecutors – by late June or early July. “In other words, identifying whether the defendant received an offer and whether he has accepted or rejected, etc.,” Hippler said.
Prosecutors aren’t required to entertain a plea deal to bargain away the death penalty but often they do. Whether Kohberger is actually considering a plea deal in the killing of four University of Idaho students on November 13, 2022, is unknown.
For jury selection, the judge outlined his plan to assign a scramble number to each person within the universe of jurors, who will then receive questionnaires. Hippler stressed the “security and confidentiality” of those questionnaires.
Hippler decided there will be eight alternates and told counsel he wants a pool of between 50 to 55 final jurors, from which 12 jurors and eight alternates – totaling 20 jurors – will be selected. Alternates will not be decided until deliberations, and a lottery will determine the alternates.
The trial is expected to be livestreamed after jury selection. Both sides discussed witnesses that may not want to appear on camera, including the surviving roommates.
Hippler responded by saying the roommates are victims of the burglary. He added there is a compelling interest to protect victims in the courtroom and that if victims request it, their faces won’t be shown.
However, he said, he would have to be convinced not to show the other witnesses on the livestream because of the public interest in the case. “The best way that we have to ensure the public is accepting of whatever verdict may be reached in this case is for the public to have the ability to see the evidence,” Hippler said.
The trial will run Monday through Friday, beginning at 8:45 a.m. and ending at 3:30 p.m. local time. If the jury becomes sequestered, Hippler said he is likely to extend those hours. He noted they may ultimately need to sequester jurors once the trial goes to deliberations.
Hippler ordered that seats be reserved inside the trial courtroom for the surviving roommates. “I don’t know whether they would have any desire to be here. I suspect not, given the way they’ve been treated in the media, but if they do that, they would have seats available,” he said. Seating will also reserved for family members of the victims and four Kohberger family members.
The possibility of the death penalty hangs over the case. If he is convicted of capital murder, Kohberger would then face a penalty phase in which the jury will consider further evidence and decide whether he is sentenced to death or a lesser punishment – life in prison without the possibility of parole. The jury will receive capital punishment case instructions in the pre-proof phase of the trial, the judge said.
If there is a guilty verdict on any of the murder counts, the penalty phase would likely begin the next day, Hippler said, “given that the jury will certainly be sequestered during that process.”
How we got here
The killings of four University of Idaho students in an off-campus home in Moscow in November 2022 were as brutal as they were perplexing.
The group of friends had gone out in the college town and returned to their shared home late. The next day, police found the four students slaughtered inside, and there were no signs of forced entry or damage.
The brutal stabbings rattled Moscow, a city of 25,000 people that hadn’t recorded a murder since 2015. The slayings led to weeks of investigation from police, frustrations from the victims’ families about the pace of the police work and fear in the local community of a mass killer on the loose.
On December 30, investigators arrested Kohberger – a grad student living in nearby Pullman, Washington – at his parents’ home in Pennsylvania. Investigators had connected him to a white vehicle seen near the killings, DNA recovered from a tan leather knife sheath found near Mogen’s body and his cell phone location data near the home, according to court documents.
Since then, the progression of the case has been slowed by a series of pretrial motions and hearings related to the death penalty, a gag order, the use of investigative genetic genealogy and Kohberger’s proposed alibi.
The case is likely to hinge on DNA evidence from a knife sheath, under a victim’s fingernails and in bloodstains.
The prosecution’s most important piece of evidence is a DNA sample taken from a knife sheath left at the crime scene. Investigators then used investigative genetic genealogy, or IGG – a forensic field combining DNA analysis with genealogical research – to connect that sample to Kohberger’s family, according to prosecutors. Subsequent DNA testing found Kohberger was a “statistical match” to the sample, leading to his arrest, according to prosecutors.
To combat that evidence, his defense team has repeatedly questioned the use, legality and accuracy of the DNA testing done in each step of the process.
“The DNA could make or break the case, and it’s all about what the jury finds to be credible,” Misty Marris, an attorney who has closely followed the case, told CNN in March.
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CNN’s Alaa Elassar and Emma Tucker contributed to this report.