The compelling video was provided by SEPTA in response to a Right-to-Know request by The Inquirer.
The videos show an initial panic on the corner of 22d and Market, followed by moments of surreal normalcy as the dust subsides and pedestrians and drivers go about their business, almost oblivious to the collapsed building.
Then several people can be seen running toward the building to attempt to help, and fire trucks begin to arrive and rescue efforts begin.
The District Attorney's Office obtained a copy of the video for its grand jury investigation into the building collapse.
The District Attorney's Office initially refused to permit The Inquirer to obtain a copy of the video from SEPTA, despite its own determination that any records in the public domain before the grand jury was impaneled should be considered public information.
Edward F. McCann Jr., first assistant district attorney, spelled out that openness position in a July 11 letter to City Solicitor Shelley Smith, as the Nutter administration has refused to release to the public many records related to the collapse.
On Thursday, the District Attorney's Office withdrew its opposition to SEPTA's release of the bus video.
Find the video and more coverage of the Market Street building collapse at www.inquirer.com/collapse
Contact Paul Nussbaum at 215-854-4587 or firstname.lastname@example.org