DNA testing will be allowed on a knife used to kill a Naperville teacher, a DuPage County judge ruled Monday.
The weapon Daniel Olaska allegedly used in a deadly bar fight currently contains two blood stains, but prosecutors said the DNA test will preclude further analysis of the evidence.
Three people were stabbed, including bar employee Rafael Castenada, North Central College student Willie Hayes and Spring Brook Elementary School teacher Shaun Wild.
Wild died of his injuries.
Defense attorney Brian Telander, who represents Olaska, of Naperville, did not object to the request, saying it isn’t relevant to the issues in the case.
"This isn’t a whodunit," Telander said in court, according to the Chicago Tribune. "It’s a whydunit."
Evidence from witnesses to security cameras show Olaska, 28, stabbing the three men after an altercation that began with a comment on Olaska drinking beer from a wine glass.
Olaska pleaded not guilty to first-degree murder, attempted murder, armed violence and unlawful use of a weapon. He is next scheduled to appear in court Aug. 13.