What's your focus?

My first coverage of a major car crash, and I find myself asking, "what's your focus?" There is the obvious carnage of the mangled wreck. There is the obvious traffic of a long line of cars standing still (which I will find myself in soon). But what detail am I looking for?

The sheriff and a few cops stand around, trying to assess the damage. I notice their work. A few notes here, a few measurements there. I focus on the those left behind to process the carnage, those that have to deal with this massive wreck left on the highway. I do not know if this the human element of photograph, but I do know this is of those left behind.