Well, if as you say, his level didn’t require him to register as and be made public, the news did it for him.
I’d at least attempt to sue based on the FACT that a death victim’s past has nothing to do with the story.
MAAAAYBEEEE if it was just that lone person’s death but even then it’s irrelevant and I still don’t see what it does for the tragedy. And that’s the argument I’d tell my attorney to make to the newspaper/reporters.
Even if it doesn’t make it to court, the attorney suing sends a letter to the defendant explaining why they’re being sued. They might learn a lesson from it at least, especially if more people start doing it if there are any other tragedies.