About one week ago, the NTSB released a video from the Asiana crash, viewpoint from the control tower. It was a security camera, I am sure that most of us have seen it. I'm sure that that particular camera is still in place. It must have caught this incident as well.
At Jacdec I saw a pic which indicated which other airplanes were involved:
UAL 1, UAL 1118, UAL 873 and Philippine airlines 115.