Gotcha
Reports from the German national police obtained by the Südwestrundfunk, Southwest Germany public radio, blow the lid off the long running sting by revealing its role in nabbing a German credit card forger active on DarkMarket. The FBI agent is identified in the documents as J. Keith Mularski, a senior cybercrime agent based at the National Cyber Forensics Training Alliance in Pittsburgh, who ran the site under the hacker handle Master Splynter.
Busting the crooks on their o'er-reaching greed will always, always work.