Best containment for a bulldog is a secure proper chain.
Sounds like you said....he got worked up over them coons and redirected his aggression on your other dog. Regardless of breed, that can happen. I have seen instances of that happening. Unfortunately in this case, because he's a bulldog, the damage was much more severe. I am very sorry for your loss.
As for your question about whether a female bulldog would do something like that? Sex does not matter in that type of situation. Male or female, doesn't matter.
Again, very sorry for your loss.
Agree with the hi-lighted 100%.
A buddy of mine has a GREAT female CD, this gyp listens to him as good as a well trained bird dog but and she still ended up killing one of his best currs...... little different situation, the male curr had gotten loose off of his chain and was tryin to get into her pen because she was in heat and she wasn't having it. At the end of the day a bulldog is a bulldog, handle doesn't matter once the switch is flipped. Hate to hear about your dogs man.