Noreen’s living-room walls are lined with boxes now—press clippings turned amber, government letters, and the dog-eared notebooks she once carried into every interview. In Part IV we sit with the aftermath. We trace how one family’s search grew into a national crusade: milk-carton photos, the first AMBER-style alerts, and the “Johnny Gosch Bill” that re-wired how police log a missing child. We unpack the victories that stuck, the reforms that stalled, and the personal toll of steering a movement while the central question—where is Johnny?—remained unanswered. Then we widen the lens: what today’s advocates still borrow from Noreen’s playbook, how social media both amplifies and distorts a case, and why investigators keep an open file more than forty years on. No neat endings here—just the resonance of one disappearance reshaping the very idea of “missing” in America, and the quiet hope that the next call might finally close the circle.