In the second ITV News clip, Williams" mother told a reporter she "recognized her daughter inside the U.S. Capitol Building and that her daughter had taken a sudden interest in President Trump's politics and "far right message boards, '" the warrant states.
At the very least, that filing by FBI Special Agent Jonathan Lund states the feds have cause to charge Riley June Williams with "violent entry" and disorderly conduct on the Capitol grounds during the January 6 riot by a pro-Trump mob.
According to an affidavit filed on Sunday, the footage showed Williams directing people "upstairs" to Pelosi's office. "'According to [Witness 1], the transfer of the computer device to Russian Federation fell through for unknown reasons and WILLIAMS still has the computer device or destroyed it'".
Thousands of Trump supporters - including white supremacists, neo-Nazis, Proud Boys and believers in the radical QAnon hoax - stormed the building in the attack, overrunning its defences and running rampant inside its halls.
This woman was directing people to Speaker Pelosi's office.
While there is no court record of a laptop being stolen, two days after the attack, Pelosi's deputy chief of staff, Drew Hammill, tweeted that a laptop used for presentations - was stolen. Her whereabouts were unknown on Monday afternoon. It was unclear whether that device was the one Ms Williams was accused of taking. "According to local law enforcement officers in Harrisburg, Williams' mother stated that that Williams packed a bag and left her home and told her mother she would be gone for a couple of weeks".
The FBI agent said Ms Williams appears to have since fled.
U.S. law enforcement is investigating whether Riley Williams, pictured, took a laptop from Nancy Pelosi's office to sell to Russians. The woman was identified by her former romantic partner in a video inside the Capitol building.
While officers were present, Williams' parents reportedly made contact with their daughter via a video call, where officers saw her wearing the same brown jacket that she was seen wearing in the video of the riot.
The videos are just a small part of the vast amount of evidence the Federal Bureau of Investigation has been poring over since the riots.
In addition, several established Republican groups that were involved in the rallies leading up to the riot have since tried to distance themselves from the violence, according to The Washington Post.
Social media users have been helping to identify the rioters, at the FBI's request. She is not charged with stealing Pelosi's computer.
Joe Biden will be inaugurated as the president of the United States on Wednesday.