The Will to Kill: Making Sense of Senseless Murders.

It takes more than just police. It takes lots of community resources. Hopefully the shootings will be a wake-up call.

The typical mass murderer is extraordinarily ordinary.

This tendency to look year by year is extremely myopic. There is a certain degree of variability . . . whether the bullet hit the arm or the heart; whether the victim reached the ER in time. It makes it very difficult to interpret the changes.

We don't solve the crime problem, we only control it. And we were controlling it until we let it get out of control.

The great successes we had a decade ago is gone. We let down our guard. The situation is not yet lost, but it could get much worse.