the dog in the crate had to be whining while the wife so sick. Most certainly at some point. I've no experience with dementia, but you'd have to almost a vegetable to not recognize that call for help.
Hackman's pacemaker stopped, but no one ever went to check on that? i mean it usually isnt good if one's pacemaker stops. If Hackman was in the bad a shape, where was home nursing? the people who cleaned his house?
he likely needed to have a home health person there to assist him. he had money. not sure what the wife was thinking.