A public rift has emerged between Bryan Kohberger’s defense lawyers and a hired expert witness after Kohberger’s guilty plea in the murders of four University of Idaho students . In their first public statement made outside the courtroom since Kohberger’s arrest in December 2022 , Kohberger’s lawyers have accused a former defense expert, criminologist Brent Turvey, of violating a confidentiality agreement by speaking about the case. “Mr. Turvey has not been released from his confidentiality agreement, and is now speaking about topics that are still confidential, many of which are outside of his areas of expertise,” a statement signed by Kohberger attorneys Anne Taylor, Elisa Massoth and Bicka Barlow said. Turvey is a forensic scientist with a Ph.D. in criminology. In a fiery statement released Tuesday evening, Kohberger’s lawyers wrote that they are “appalled” by his recent comments. “It is the opinion of the defense team that Mr.…