It claims that between 1996 and 2005, “the FBI continued to receive direct reports, complaints and tips concerning the illegal sex trafficking of women and underage minors, sex abuse and human rights violations committed by Jeffrey Epstein and associates”.
Evidence that the agency ignored, the lawsuit claims, included “photographs, videos and interviews and hard evidence of child prostitution”.
Idk, if you provide evidence of a crime to law enforcement and they don’t act on it resulting in further harm then that seems like a pretty clear case of damages caused by negligence to me.