We move from maps and minutes to the people at the center—and the story the world thought it owned. Part IV looks at how families actually partner with investigators (tempo, privacy, and why silence can mean work), the media’s twin edge of reach and rumor, and the online town square that never forgets. We add a careful, time-stamped pass through the publicly named suspects and lines of interest across the years—what was said, when it was said, and what it legally means. No re-trial by podcast, no shortcuts—just a humane ledger of roles, pressures, and the pieces of the public record sturdy enough to stand on.