UPDATE (1/19/21): Federal agencies announced the arrest of 22-year-old Riley June Williams in central Pennsylvania on Monday afternoon.
A Harrisburg woman was implicated in the U.S. Capitol riot by a former lover who told the FBI that she had stolen a laptop from Spokeswoman Nancy Pelosi's office.
The tipster told authorities that an ex-girlfriend, 22-year-old Riley June Williams, directed people to the Democratic Congressman's office and took away electronic devices, court documents say.
The tipster referred the investigators to a video in which Williams is alleged to be leading a group of rioters up a flight of stairs.
In a sworn affidavit filed on Sunday, the tipster revealed that they had spoken to friends of Williams and seen a video of them taking a laptop or hard drive from Pelosi's office. The tipster claimed Williams intended to send the laptop to a friend in Russia who would then forward it to Russian intelligence, CNN reported.
The tipster said plans to transfer the laptop ultimately failed and it is believed that Williams either still owns the laptop or has destroyed it.
In the days following the uprising, Pelosi Chief of Staff Drew Hammil confirmed that a laptop used for presentations had been stolen during the uprising.
Investigators said Williams drove to Washington DC with her father and the two returned to Harrisburg in the hours following the riot.
British television broadcaster ITV News interviewed Williams' mother outside her apartment earlier this month, where she identified her daughter in the video and said she had become increasingly involved in right-wing online circles.
Williams' mother also spoke to the FBI, informing authorities that her daughter had packed a bag and left the house for an unknown destination. The FBI noted in its affidavit that Williams apparently changed her phone number and deleted her social media accounts.
Williams is charged with violent entry or disorderly conduct and entering the limited space of the Capitol. Theft allegations have not yet been filed at this point, but the case is still being investigated with the FBI.
More than 150 people who took part in the uprising sparked by President Donald Trump's false claims about a rigged election are now being prosecuted in connection with the events at the U.S. Capitol. Five people, including two U.S. Capitol police officers, died that day.
Williams remains wanted by the FBI for her role in the riot.