In a TV interview on CNN the girlfriend of the Illinois shooter mentioned on camera said that the shooter had been taking Prozac until 3 weeks ago and wanted to get off the drug because it made him feel like a zombie. It is known in the industry that often the withdrawal symptoms are even worse than the side effects while taking the drugs.

This is unusual that the name of the antidepressant involved in the shooting got released so fast! Normally no drug names are mentioned until many weeks after the shooting, at a point when nobody really cares. But even in this case it is interesting to see that the large media outlets do not mention Prozac in writing in connection with the shooting, only on the video, which cannot be searched in Google.

http://www.cnn.com/video/#/video/us/2008/02/17/boudreau.shooter.girlfriend.cnn