U.S. Capitol Police arrested Wednesday a former Democratic staffer suspected of posting the personal information of at least one United States senator to the internet.

The home addresses and other personal information of Republican Sens. Lindsey Graham of South Carolina and Mike Lee and Orrin Hatch of Utah were posted to Wikipedia on Sept. 27 from an individual located in the House of Representatives. (RELATED: Republican Senators Doxxed By Someone In House Shortly After Questioning Kavanaugh)

Jackson A. Cosko, 27, was charged with making public restricted personal information, witness tampering, threats in interstate communications, unauthorized access of a government computer, identity theft, second-degree burglary and unlawful entry, according to a Capitol Police statement. Additional charges may be forthcoming as the investigation continues.

Cosko has most recently worked as an intern for Texas Democratic Rep. Sheila Jackson Lee. He has also worked under Democratic Sen. Maggie Hassan of New Hampshire and former California Sen. Barbara Boxer, according to Fox News.

Jackson Lee’s Chief of Staff Glenn Rushing told Politico that Cosko has been fired.

“We’re just cooperating with law enforcement right now,” Rushing said.

Cosko is a “Democratic Political Professional & Cybersecurity Graduate Student,” according to his LinkedIn page, which states that his job duties in the U.S. Senate included assisting senior staff “with issues before the Commerce Committee including technology, telecommunications, transportation; as well as with cybersecurity matters before the Homeland Security Committee.”

All three senators doxxed Thursday sit on the Senate Judiciary Committee. Their personal information was posted online as Supreme Court nominee Brett Kavanaugh was being questioned about sexual assault allegations.

Graham said multiple people came to his house after his personal information was made public.

“I got a new number and a bunch of people beating on my door last night,” Graham told “Fox & Friends” on Sept. 28.

Follow Andrew on Twitter. Send tips to akerr@dailycallernewsfoundation.org

Content created by The Daily Caller News Foundation is available without charge to any eligible news publisher that can provide a large audience. For licensing opportunities of our original content, please contact licensing@dailycallernewsfoundation.org.