He had spent months gaining the confidence of this particular collector before the man finally agreed to share some of his images and videos. Krawczyk-tall, with the slender, broad-shouldered build of a competitive cyclist-was running a search on the IP address of an anonymous collector he had met working undercover in an encrypted online community. One afternoon in October 2010, detective Lisa Belanger was sitting at her desk when her supervisor, Paul Krawczyk, walked past to grab a printout. For more Walrus audio, subscribe to AMI-audio podcasts on iTunes.
