JP,
It may be that we don't disagree that much, who knows.
I, however, refuse to condemn anyone on a 'suggestion' or even a probability, when the standsrd of proof is absolutely no doubt.
The book may well be right, although I doubt it. Can't you see the point? No matter what any of us choose to believe, the evidence simply does not exist to uphold the finding of Gross Negligence.