Why is their fear of death from homicide greater than fear of death from a health-related issue or automobile accident?

In nearly every public opinion poll since the 1960s, Americans have expressed being a victim of a crime as being their top concern. Why is their fear of death from homicide greater than fear of death from a health-related issue or automobile accident? Is this fear justified? In what ways do the media influence public opinion? How can this fear turn into public action?
There is often discussion about the possibility of having a professional jury. A professional jury would be comprised of full-time jury members with degrees in criminal justice or a related field. Identify the pros and cons of such a system.