“We are treating this as an act of domestic terrorism,” said Bill Killian, U.S. Attorney for the Eastern District of Tennessee. U.S. Attorney William C. Killian said. However, Killian said that the investigation would bear out precisely what kind of crime this was, and he cautioned people not to get caught up in the label. (Washington Post) How ironic that it is Bill Killian – who was the most reluctant official to speak at today’s press conference. William Killian is the Department of Justice official who vowed to criminalize social postings on Facebook and Twitter.