CHICAGO (WBBM) -- A month after Steven Kazmierczak opened fire on students in a Northern Illinois University lecture hall, killing five students and wounding 16 people, autopsy and toxicology reports have been released.
But the reports do not provide any answers to the police who continue to investigate the case.
The autopsy on the 27-year-old Kazmierczak shows he died of a "contact range" bullet wound to the mouth. But there was no alcohol and little in the way of drugs in his bloodstream.
The toxicology report revealed what NIU officials termed "minute" amounts of four substances.
It found less than .5 micrograms of nicotine, less than 0.025 micrograms of what it terms a "residual antidepressant," alprazolam, and traces of two common cold medications, benzodiazepine and pseudoephedrine.
As expected, the autopsies conducted by Coroner Dennis Miller on victims Daniel Parmenter, Ryanne (like "Ryan") Mace, Catalina Garcia and Julianna Gehant determined that they died of their gunshot wounds.
Police said within days of the shooting that Kazmierczak had stopped taking his medication, leading to changes in his behavior.
Miller was not in his office Friday and unavailable for comment. NIU Police Chief Donald Grady referred all calls to the university's public information office.
Miller delivered his findings to NIU officials on Wednesday. He and NIU officials met Thursday to discuss how the information would be released.
NIU is on spring break this week.
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