THE FBI has returned to the Idaho murders house after a major shake-up in the case against alleged killer Bryan Kohberger.

Federal law enforcement officers are gathering more evidence at the home where four University of Idaho students were murdered on November 13, 2022.

It comes after the judge in the murder case against Kohberger ruled in his favor at a hearing last week.

The defense wants to see specific details regarding cops’ use of investigative genetic genealogy (IGG), which led to Kohberger being named a suspect in the students’ murders.

Judge John Judge has granted Kohberger’s attorneys’ request for a review of the IGG evidence and is looking it over himself to determine what should be shared with them, Fox News reports.

The judge denied another recent request by his legal team to dismiss the indictment after claims that the grand jury was given incorrect instructions.

Prosecutors were granted more time to work in the home where the students were killed, allowing them to take additional measurements and images after the house was emptied of personal items.

The further examination will help them create the visual exhibits they need for their case, according to a report by NewsNation.

A date has yet to be set for the trial.

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Kohberger, 28, has been charged with four counts of first-degree murder in connection with the deaths of Idaho University students Xana Kernodle, Kaylee Goncalves, Ethan Chapin, and Madison Mogen on November 13, 2022.

The four friends were stabbed to death in one of the worst crimes to shock the small town of Moscow in decades.

The Moscow Police Department spent almost two months conducting a multi-state manhunt that attracted tens of thousands of tips and public attention to track Kohberger down.

They found him at his parents’ home in Pennsylvania about six weeks later after they used investigative genetic genealogy to tie DNA evidence found on a knife sheath to the suspect.

Police arrested Kohberger after comparing their sample from the students’ home to Kohberger’s father’s DNA, taken from a piece of trash outside his home.

In May, a not-guilty plea was entered on Kohberger’s behalf.

The motive for the crime remains unknown.

Although investigators initially said that the murders seemed to be an isolated incident and that Kohberger had not previously known the victims, evidence that emerged later suggested a different story.

During the investigation, police learned he had allegedly visited the vicinity of the friends’ home at least 12 times leading up to the murders, and had messaged them previously – to no avail – on social media.

Kohberger’s lawyers, including defense attorneys Anne Taylor and Jay Logsdon, argued in July that the indictment against him should be thrown out due to an error in grand jury instructions.

They claimed that there was a specific problem with the burden of proof in the case being represented to jurors as probable cause instead of beyond a reasonable doubt.

The University of Idaho plans to tear down the house where the massacre occurred at some point in the future.