Would Bryan Kohberger, a Criminology student, leave the knife sheath on the scene? Only if he wanted to get caught.

Would Bryan Kohberger, a Criminology student, leave the knife sheath on the scene? Only if he wanted to get caught. 

Did someone else want him to “get caught”? 

Was this knife sheath, with his DNA so conveniently printed right on the button, obtained earlier, before the murders, and planted there, in the bed, intentionally and deliberately by the real killers, to point to him as the targeted patsy, and to get the chase off the trail? 

Is there a sign in the criminal world: to leave the empty knife sheath on the scene? What does this mean? 

“The knives are out”?