Prosecutors want the genetic testing on the 5-inch-long folding knife to confirm it was the weapon used to kill Wild and wound two other men back on February 4 at Frankie's Blue Room.
Prosecutors say security footage from several angles showed Daniel Olaska stab Wild during a confrontation that allegedly began when another man teased Olaska about drinking beer from a wineglass.
Prosecutors said Olaska stabbed that man in the chest then stabbed Wild in the heart as the teacher tried to intervene.
