We also know she said she went swimming at the country club every day. How did she get there every day?
What does not seem to be under any dispute is that ford frequently went to the country club for the apparent purpose to swim.
What i question is whether or not she actually swam at the country club, at least on the day in question.
A moment of reflection yields the notion that ford was regularly driven to the country club and back home. Who was that mystery person? Someone must know, but so far no one is talking. There must be a powerful reason why there is a cloaking of this person. Why? I considee this mystery person to be a person of interest.