For Outfit readers who have been following the case, this week Channel 5 in Chicago ran parts of an interview with Hans Peterson's father, Dr. Thomas Peterson, which was taped for an upcoming edition of Dateline NBC:
"There are multiple victims and multiple villains. I feel that one of the victims is Dr. Cornbleet and one of the villains is Dr. Cornbleet. One of the victims is Hans Peterson and one of the villains is Hans Peterson."
Here is part two of the NBC interview which explores the Accutane angle in slightly more depth and includes a response from the victim's son, Jon Cornbleet.
Chicago's ABC affiliate (WLS, Channel 7) also ran an interview with Dr. Peterson. That piece includes a statement from Dr. Douglas Bremner, the Director of the Emory University Clinical Neuroscience Research Institute, who performed a brain imaging study a few years back that claims to show that Accutane has an effect on the orbitofrontal cortex.
If you're confused by the conflicting scientific claims made about the risks of Accutane (also known as Isotretinoin), here is a good explanation of why you're confused, referencing Bremner's study, a more recent study which shows no link between the drug and depression, and another that calls for more studies. If I understand it correctly, Bremner's study showed how Accutane might be linked to depression, but it did not actually show a cause-and-effect relationship:
Dr. Bremner explains that to invoke depression, isotretinoin must influence the brain. During the investigation, brain function of the subjects was measured using positron emission tomography (PET) before and after four months of treatment with isotretinoin. Isotretinoin treatment was associated with decreased brain metabolism in the orbitofrontal cortex- the area of the brain known to mediate symptoms of depression. Yet, there were no differences in severity of depressive symptoms between the isotretinoin and antibiotic treatment groups before or after treatment.
The local CBS station (WBBM, Channel 2), includes some quotes from an interview with Dr. Peterson on its web site, but has no video.
UPDATE: The local papers all have updates on the anniversary of Dr. Cornbleet's murder.