They are probably just trolls.

Hi,

Police found no threats of anything serious. I left you alone for months and we been bullied by trolls too. They are probably just trolls. No need to spend money on lawyers. We are not suing or attacking anyone. Ever since you blocked us that was the end of it. I leave people alone. Maybe they are toxic trolls and bots who are stalking you? Ever thought of that before accusing someone? I left you all alone.