John Ramsey isn't a lawyer! She had the nonverbal exchange - I promise you John Ramsey was oblivious at that time.
My mistake, there was a lawyer friend in the home at the time.
But I dispute the idea that John was oblivious. Some people compartmentalize their greif and panic and do what needs doing. JR was criticized for that too.
Perhaps that "non-verbal communication" was JR realizing Arndt was useless as he watched her mind "explode".