Although the man's name was redacted in the documents provided to the Web site, their description of the case matches that of Danny M. Kelly, an unemployed engineer who at the time lived in Chelmsford, Mass. According to federal court records, Kelly was accused of cutting a total of 18 above-ground communications cables between November 2004 and February 2005 as part of a plot to extort money from Verizon and Comcast.

"Kelly sent a series of anonymous letters to Comcast and Verizon, in which he took responsibility for the cable cuts and threatened to continue and increase this activity if the companies did not establish multiple bank accounts for him and make monthly deposits into these accounts," the original complaint read.

According to the complaint, Kelly demanded $10,000 monthly from each company, and told the firms to post the bank account information on a private Web page he demanded they create.

"Both Comcast and Verizon did create the requested private Web pages, in an effort to communicate with the extortionist and to gather information that might identify him," the complaint said. "When Kelly accessed the Web pages, he did so via an anonymizing Web site through which he sought to hide the Internet protocol address of the computer he was using and therefore hide his identity."

The said that the FBI obtained a warrant to use a program called (CIPAV) to identify Kelly's computer as the one that accessed the extortion Web sites. in July 2007 in court records related to a case involving a rash of bomb threats e-mailed to a Lacey, Wash. high school. In a filing to the court, an FBI Special Agent said that after getting a warrant, the agency planted CIPAV on a 15-year-old's computer via a link posted to his MySpace page.