A knife sheath with DNA on it that was found at the apartment house where four University of Idaho students were stabbed to death in 2022 could have been planted by the actual killer, defense lawyers for suspect Bryan Kohberger may argue at his trial.

Bryan Kohberger's defense is expected to argue that the knife sheath recovered from University of Idaho murder scene could have been planted by real killer, prosecutors say.

Prosecutors say Bryan Kohberger's defense team will argue someone else could have planted a knife sheath with his DNA at the home where four University of Idaho students were killed.

Defense attorneys for Bryan Kohberger, the suspect charged with killing four college students in Moscow, Idaho, reportedly will not contest that his DNA is on a knife sheath found at the murder scene.