The Tax Sleuth Who Took Down a Drug Lord
Within the I.R.S., Mr. Alford had heard tales of his agency being ignored and overshadowed by more prominent organizations like the F.B.I. The story that resonated with Mr. Alford most strongly was that of the tax agent Frank J. Wilson, who brought down the gangster Al Capone, but who was forgotten in the movie versions of the investigation, which tended to focus on Eliot Ness, the flashier Bureau of Prohibition agent.
“They don’t write movies about Frank Wilson building the tax case ..
.. “I’m not high-tech, but I’m like, ‘This isn’t that complicated. This is just some guy behind a computer,’” he recalled saying to himself. “In these technical investigations, people think they are too good to do the stupid old-school stuff. But I’m like, ‘Well, that stuff still works.’ ”
Mr. Alford’s preferred tool was Google. He used the advanced search option to look for material posted within specific date ranges. That brought him, during the last weekend of May 2013, to a chat room posting made just before Silk Road had gone online, in early 2011, by someone with the screen name “altoid.”