Earlier quoted context omitted.
i believe there were cuts in the video so it was prerecorded. cuts that apparently were so clean it was another piece of evidence they had some access to some professional equipment as consumer grade equipment of the time wasn't up to the task
It could have been put together in one of several schools in the area from consumer grade sources.
I’m always afraid when I hear someone copypasting Apple memos. Obviously they must have watermark, if not text glyphs (rn = m, and further UTF-8 incantations), at least subtly different phrasing depending on which department, or person, views it.