There is a lot of action in this post.
Some of my thoughts:
There is a way, if the perp is willing, to get a better understanding if he is telling the truth. A competent T in this area can do a sexual history exam, polygraph, and ask him if he abused your children. Since he has accepted the abuse he perpetrated against your husband and hes noot hiding anything, there should be no problem in providing you this piece of mind...this is a way to keep the kids out of it, if you so choose....You dont say whether they know of the abuse ect.
I would be cautious, and to let others know the same warning, when/if confronting a perpetrator not to tell them
" I tod him that if he did he had better crawl on his knees and beg their forgiveness"
the perpetrator does not have the right to ask for forgiveness, only the survivor has the right to grant forgiveness, on their terms, when and if they are ready.
I'm happy your husband allowed you to do what you felt was necessary, for you and your family and you find the healing your searching for.
The recent news is having a wiedspread effect on people and families....some in the public might not understand the triggers and the effects of even the news can have on survivors and their supporters.
I dont think a lot of perpetrators realize and the sociopaths dont care what they leave us....that it wasn't just the event/s of abuse ect, The lasting effects are so intertwined in us and rewiring is hard without getting electricuted.