I think people have an interest in this sort of thing because they want to think that they have more control over their lives than they do. You read about a tragedy, and want to know exactly how it happened, so you can either prevent it, or think that it won't won't happen to you because you ____ (fill in the blank.)
There may be things that we can do to lessen the chance of bad things happening to us or our loved ones, but sometimes things happen due to circumstances beyond our control.
There may be things that we can do to lessen the chance of bad things happening to us or our loved ones, but sometimes things happen due to circumstances beyond our control.