Mike and Bart are sitting in the car preparing for their next action.
Mike wants to put a camera on his head and he flaps down the sun visor to see himself in the mirror. But he gets distracted by telling Bart some trivia about the camera.
After that there is a cut in cinematography and he flaps the sun visor down again.
Charles Manson is not a serial killer in that he never personally killed anyone; he only ordered the killings.