At the end of Robert Durst's final interview for the HBO docuseries The Jinx, he heads into the bathroom while fully miked. Seemingly unaware that he was being recorded, he talked to himself. "You're caught," he mumbled. "You're right, of course. But, you can’t imagine. Arrest him."
It's unclear whether this was a confession, but the FBI did arrest Durst on Saturday afternoon in New Orleans. (The FBI had been investigating Durst apart from the documentary and there's no evidence that they arrested him because of his confession on Sunday's episode.)