Special Agent B. W. Molloy, now retired, tells the following story: One morning the body of a child was found in the Rose Garden. The sun had just risen. A concert had been given the night before in celebration of the National Arts and Humanities Awards, an event held every year in May. The body was discovered by Frank Calabrese, sixty, the groundskeeper, who had arrived in advance of his workers to oversee the striking of the performance tent. Dew was on the grass and the air was fresh.