The Idaho killings suspect is 'shocked' at his arrest and 'eager to be exonerated'

• The public defender representing the Idaho killings suspect says his client is "shocked."
• Bryan Kohberger, 28, was arrested at his parents' home in Pennsylvania on Friday.

The suspect in the murders of four University of Idaho students on November 13 is "shocked a little bit" at the allegations against him, his attorney told CNN on Saturday.

Bryan Kohberger, 28, was arrested at his parents' house in Pennsylvania on Friday, and is being held without bail until he can be extradited to Idaho. Kohberger has been charged with four counts of first-degree murder and felony burglary in the deaths of Ethan Chapin, 20; Madison Mogen, 21; Xana Kernodle, 20; and Kaylee Goncalves, 21.

The four victims were found stabbed to death in the home they were renting near the University of Idaho campus, setting off weeks of fear and speculation within the campus community as authorities searched for a suspect.

Kohberger is "eager to be exonerated of these charges and looks forward to resolving these matters as promptly as possible," according to a statement provided to media outlets by the lawyer currently representing Kohberger in his Pennsylvania extradition proceedings, Monroe County Chief Public Defender Jason LaBar.

LaBar also announced that Kohberger will not contest his extradition to Idaho. He reminded the public that Kohberger may be "accused of very serious crimes," but "should be presumed innocent until proven otherwise — not tried in the court of public opinion."

LaBar also told CNN in an interview that he has recommended Kohberger be psychologically tested before court proceedings occur. He said Kohberger is currently being detained in a cell by himself, and is on "24-hour watch by the guards there to ensure his safety."

A mugshot of Kohberger provided to media outlets on Friday showed Kohberger wearing a suicide-prevention smock. He is being held at the Monroe County Correctional Facility in Pennsylvania, and has a hearing scheduled for Tuesday.

LaBar told CBS News that even though Kohberger will waive his extradition hearing, he'll still have to appear before a judge to sign paperwork. LaBar estimated that Kohberger could be transported back to Idaho in as few as 72 hours after the Tuesday hearing.

"I would imagine it's going to happen pretty quickly," LaBar said.

LaBar added that he didn't have many to share about the investigation into Kohberger, as he has not received any probable cause affidavit and is only representing the suspect for the extradition component of the criminal proceedings.

He told CNN that Kohberger arrived at his parents' home in Pennsylvania on roughly December 17 to spend the holidays with them. LaBar said Kohberger's father traveled to Idaho and they both drove back to Pennsylvania together. He added that Kohberger's white Hyundai Elantra was discovered at his parents' home, and that both Kohberger and his father were cooperative with authorities during the Friday arrest.