Scott "Hider", maybe? Scott certainly has a big ego. He seems to be really proud of his physique. He puts it out there enough. I bet he really studies over which manly photos to put on his site.
He lets his children swim in the Outer Banks (Hatteras Island) waters? They are the most treacherous waters, even for experienced folks. The undertow is turbulent, there are drop-offs and currents. Our kids were only allowed to "swim" on Hatteras Island in the little tidal pools when the tides provided them. Otherwise, many of the homes on the island have swimming pools.
RKAB, I've enjoyed hearing your comments about Brad's mother. You had firsthand experience in knowing her.
You know what I see? I see that Brad and Nancy were probably happy when they moved here. They got the two dogs, (not much responsibility there, compared to two children who were born later), things were probably better then. They could each have time for what they wanted to do.
Everyone who has been a parent knows how things change when children come along. The priorities change. The money situation changes. There is a lifetime of planning for the child's life.
All the while, Brad had his priorities that hadn't been fulfilled for himself: MBA, he had his ongoing job, he wanted to keep involved in his athletic endeavors which called for immense amounts of training, time and money too.
He had other women in his life. Things weren't going the way he liked it. It seems that Nancy's priorities became the children, without much help from him. Nancy and the children must have made Brad feel like he was tethered, whereas other loving husband/fathers would be happy in that role of father/husband, while managing their life in a way that worked. Brad didn't seem to have a clue. He couldn't fit his "all about Brad" life in with his "Daddy/husband Brad" life. He didn't seem to see that husband/daddy role as a comfortable one. Life was getting more complex and their lives as a married couple was not mellowing, maturing or anything else. I don't see that Brad had the ability to come out and deal with problems except through black and white thinking, having to control, and needing to be put on a pedestal by someone (lovers, work, his athletic endeavors and, put on a pedestal in his own view of himself). Anything that didn't accompany those needs became obstacles, sometimes disposable ones, with no sense of human compassion from him, unless it became necessary to feign human compassion in order to gain acceptance toward some self-serving goal for himself. He probably feigned lots of compassion/passion for his lover(s) with the self-serving goal being sex and adoration by and from his conquest.
Just some observances into what I see of his psyche.