I think the first thing to do is to hire an experienced lawyer. The second thing and you know in the confusion of somebody being hurt, a family member being hurt, or you being hurt, it's absolutely necessary to try and preserve evidence.
Classic case would be, a case where somebody is hurt in a car accident. They're taken to a hospital, their family gathers around them at that hospital, but the car itself is towed away and sometimes crushed.
I've been in numerous cases, been involved in numerous cases where months later we'd be trying to get pictures of that car, a jury wants to see pictures of that car. Insurance companies, they disappear those pictures. If they have them. I have had case after case where a picture of a car has disappeared, well why?
It's one of the most important parts of the evidence. So...