Capitol Police have arrested the man suspected of releasing the personal phone numbers and home addresses of Republican senators during last week's Senate Judiciary Committee hearing, according to The Hill.
Jackson A. Cosko, a former aide who has been employed by several Democratic congresspeople recently, was arrested and charged with making public restricted personal information, witness tampering, unauthorized access of a government computer, identity theft, second degree burglary, unlawful entry, and threats in interstate communication.
Last week, someone made anonymous edits to the Wikipedia pages of Sens. Lindsey Graham, Orrin Hatch and Mike Lee, as well as Senate Majority Leader Mitch McConnell, while Supreme Court nominee Brett Kavanaugh was testifying before the Senate Judiciary Committee. Some of the information was inaccurate, according to The Washington Post.
A Twitter account called @congressedits automatically tweets out any updates that are made to Wikipedia pages from computers on Capitol Hill — which means the account tweeted out the personal info of the Republican congressmen. The account was quickly suspended for doing so, even though it was just an automatic function.
Cosko most recently worked for Rep. Sheila Jackson Lee (D-Texas) as recently as September, and previously worked for Sen. Maggie Hassan (D-N.H.), and retired Sen. Barbara Boxer (D-Calif.). According to his LinkedIn page, he stopped working for Hassan in May 2018. He refers to himself as a "Democratic Political Professional & Cybersecurity Graduate Student" on the page.
Some suspected the doxxing came from Rep. Maxine Waters' office, but she denied the allegations and reportedly had an IT specialist verify that the violating IP address was not connected to her office.