It’s become all too familiar — all of a sudden, someone opens fire on people who just happened to be in the wrong place at the wrong time.
In the aftermath, the question is asked: Didn’t anyone know that the shooter was disturbed?
Sometimes, unfortunately, the answer is no.
Matthew Goldenberg, assistant professor of psychiatry at the Yale University School of Medicine, explains why it’s so hard to identify potential mass murderers.
Can we pick out the mass shooters before they kill? on LATimes.com.
A guide to mass shootings in America, on MotherJones.com.