John P. Tomkins was arrested by federal agents led by the U.S. Postal Inspection Service and is accused of mailing two partially disconnected pipe bombs, along with threatening letters signed The Bishop, to investment firms, confirmed Postal Inspection Service spokeswoman Wanda Shipp.
Mr. Tomkins, of Dubuque, Iowa, was charged Tuesday with sending the pipe bombs to American Century Investments and Janus Capital Group, and sending more than a dozen threatening letters to investment companies over the past two years, according to a joint news release from the office of U.S. Attorney Patrick J. Fitzgerald and the postal inspection service.
Mr. Tomkins, a machinist at a Dubuque manufacturing company, was arrested this morning, according to the release. He was expected to appear this afternoon in U.S. District Court in Chicago.