I have more to add. It is difficult to photograph something like this without it having an effect on you. Emotions are running high and either you agree with the actors or you disagree. One way or the other it will get to you. Rick shot this in our mild winter weather. Try this in the summer when it is hotter than hell, and I guarantee you stuff happens all summer long here.
Today it was 85F in Houston, around 30C, in the middle of winter, so think about what our summers are like.