BBM: that is simply not true. It's not even true within my immediate family, much less for human beings as a whole. If you judged by appearances alone, you would have said my sister and I loved my brother, but our mother did not. Yet it was our mother who cared for him for the many years he was ill; no one was closer to him than she (and vice versa).
Your semantics are inexact. That you find their behavior highly inappropriate is not the same as to say an action is highly illogical--even though the word "ridiculous" may be used in either case.
If you think marijuana can't leave you with a fuzzy memory, then you haven't smoked much of it. This is particularly so if it is combined with alcohol. But, frankly, I think most of the conflicting stories arose from a the pressure of interrogation and the effort to say what the police seemed to want said.
