After a sold-out screening at the Chicago International Documentary Festival, H.H. Holmes: America's First Serial Killer is now available on DVD. The feature was written, directed, and produced by local filmmaker John Borowski, who spent three years on the film. For more on H.H. Holmes, check out "The Murder Castle of H.H. Holmes," an excerpt from Troy Taylor's Haunted Chicago book. Or, visit the official website for Erik Larson's best-selling book about Holmes and Chicago's Columbian Exposition of 1893, The Devil in the White City.