Probably not; certainly no court-based service or police-based service that I know of would provide media assistance. Certainly non-government groups would probably help families.
I mean, it can be cathartic for some individuals. Some people have the need to speak out, if it's a loved one who was murdered, to represent their loved one in the press; maybe they weren't portrayed very well in the court. For other families, they just feel overwhelmed. When you shove a camera in front of them, they feel obligated to answer, even though they may not want to.