First of all, that's really sad. What a tragedy.
Secondly, I know a "little" about work comp having been through it. I can tell you this. Work comp ain't got NUTHIN to do with helping the employee. It's ALL about protecting the employer. Under the work comp umbrella, employers are almost always completely protected from any sorts of lawsuits dealing with work place mishaps. So that is why the family must seek other avenues. They won't win, though. It's really unfortunate, but sometimes an accident is just that.