In the final moments of HBO’s documentary series The Jinx, Robert Durst goes to the bathroom. “What the hell did I do?” he says to himself. “Killed them all, of course.” Durst, the infamous son of a New York real estate mogul, was long suspected of murdering his first wife in the ’80s, his best friend in 2000, and a neighbor in 2001. (In court he admitted to accidentally killing his neighbor in self-defense, then dismembering him.) But does Durst’s arrest on Saturday—one day before the finale aired—suggest that the filmmakers had a deal with the police?