You do realize the Grandpa is just relaying the story from his son right? Why would he not call 911? Maybe because it didn't happen like the murder suspect said it did. Maybe because he freaked out and no one knows how they will react in a situation like that unless they have been in it. Why ask the hard questions to someone who is only the messenger.
Yes, I realize the grandpa is just relaying the story from his son. I'm not asking hard questions directed at the grandpa-- I'm simply stating why I think the story makes no sense . I disagree that no one knows how they would react in a situation like that. If a child is injured in an accident, people don't debate whether they should call 911 or go dump the body elsewhere.