Chacon had been with the FBI’s Dive Team for nearly twenty years. Almost nobody knows what they do or that they exist, even within the Bureau. Yet Dive Team members see more death and mutilation than the average FBI agent, who might deal with one homicide in an entire career. At forty-eight years old, Chacon was the team’s elder statesman. There was no one better prepared or more experienced to lead a dive of this physical difficulty and sensitivity.