I would not use anyone's version of events as fact in this case - other than LE's.
Agreed. As this goes on, not sure anyone "quoted" has a credible time frame at least vis-a-vis any facts/realities....other than the sheriff seeing the bikes when he got to the lake...
And that lack of confidence begins with grandma's statement when she said she saw them leave...
How many people, in general, keep that close of an eye on time when you are not working..??