“A 'Cat-in-the-Hat' killer is stalking residents in south Mississippi.”

The narrative of a 'Cat-in-the-Hat' serial killer is a documented internet hoax that gained traction in late 2026. Investigations by local news outlets, such as the Roy Howard Community Journalism Center and WDAM, confirmed that the claims circulating on social media platforms were part of a viral trend involving AI-generated imagery and staged videos. Law enforcement agencies, including school district police and the FBI, investigated these reports in Mississippi and determined that there was no credible threat or actual individual stalking residents. The trend appears to have originated from earlier viral content in Ireland and the United Kingdom, where police similarly debunked the existence of such a figure, identifying the content as AI-generated or staged pranks. The phenomenon is widely recognized by digital culture experts as a 'creepypasta' or AI-driven hoax designed to incite fear and engagement on social media.