Thankfully the group was trustworthy and provided him the safety he needed to speak his truth.
Congratulations to you both.
I recall my wife saying I was smiling as I disclosed the abuse to my parents...I don't specifically recall the smiling, but it sure feels good to get that monkey off you should.
Can't help but think of that moment anytime I see " the flying 800lb weight off my shoulder" tattoo I had placed there for such moments.
Good luck keeping the momentum going and be cautious of the "I want to disclose to everybody no w" that sometimes comes with this feeling.
consider at some point reasking permission to expand your support group if that works for him and with the same type of trust and safety.