No one has figured this out before now?
Guess all that did was stir their juices up for another go.
The link is this ~ one of these young folks is beginning to manifest the disturbance we call schizophrenia ~ which will frequently lead to a violent lifestyle in many ~ and the doc prescribes pills.
The doctor might not even recognize the leading signs of schizophrenia, and the doctor would have done well to withhold the pills and send the kid to a shrink, or, in a previous time, send the kid over to the jailhouse for a look-see pending formal medical evaluation.
So, the kid gets the pills, the schizophrenia progresses, and he ends up blowing up or shooting up somebody or something, or a whole lot of somebodies and somethings!
Schizophrenia is the problem. Failure of the medical establishment to demand legal process so ordinary doctors can SEND these guys to incarceration for observation is another problem. The pills are a problem only to the extent they delay treatment.
Mitch Daniels is not your problem anyway.
The link between mind altering anti-depressants and homicide has been understood by some people for a very long time: