Democratic staffer arrested for doxxing GOP lawmakers

A former staffer to several Democratic legislators has been arrested on charges he revealed the private and identifiable information of at least four GOP senators, three of whom are members of the Senate Judiciary Committee.

In a brief statement issued Wednesday, the United States Capitol Police (USCP) announced it had detained 27-year-old Jackson Cosko and charged him with a raft of federal offenses.

USCP closed in on Cosko after edits to the senators’ Wikipedia pages emerged on Sept. 27.

Authorities were alerted by a Twitter bot which tracks edits to Wikipedia pages made from IP addresses associated with Capitol Hill buildings.

Accused of “doxxing,” Cosko is believed to be responsible for the publication of home addresses, personal phone numbers and other restricted information of Sens. Mike Lee (R-Utah), Orrin Hatch (R-Utah), Lindsey Graham (R-S.C.) and Majority Leader Mitch McConnell (R-Ky.).

Cosko is charged with violations to laws protecting the release of personal information, witness tampering. threats in interstate communication, unauthorized use of government computer, identity theft, second degree burglary, and unlawful entry.

Appearing in court Thursday, Cosko was charged and ordered remanded to jail until his next hearing scheduled for Tuesday, Oct. 9.

According to the criminal complaint, Cosko is also charged with witness tampering after someone confronted Cosko using a computer in the offices of Sen. Maggie Hassan (D-N.H.).

During the encounter, according to the witnesses’ sworn statement, Costko threatened to leak further information if they revealed what had occurred.

It is also believed Cosko threatened to release the personal information of the senators’ children.

A Burlingame, Calif., native, Costko is believed to be a graduate student at George Washington University. His most recent employment as a congressional staffer was with the offices of Texas Democrat, Sheila Jackson Lee.

Prior to serving with Lee, Cosko was employed at the Senate offices of Hassan, and was listed as an intern in the office of retired California Democratic Sen. Barbara Boxer.

The act of releasing senators’ personal information comes amid the contentious hearings surrounding Supreme Court nominee, Brett Kavanaugh.

As protesters descended on Capitol Hill for the testimony of Dr. Christine Blasey-Ford, USCP took the extra step of increasing security for lawmakers after threats from demonstrators and Cosko’s activity demanded heightened security measures.

If convicted, Cosko could be imprisoned for 20 years.


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