Ughhh so heart wrenchingly AWFUL!!! WHY. WHY was a toddler left alone with two intact dogs, one in heat!? I have heard countless stories about children being mauled when left with an intact male and a bitch in heat. Children should not be left alone with dogs period, but that is taking neglect and stupidity to a whole new level!!!
All of the Bullies I've met have been super friendly... However, being friends with some Bully breeders, I can see how some of them would overlook aggressive lines in favor of looks/color/whatever. When beefiness and "rare colors" come before temperament, especially with huge powerful dogs, something can go very wrong. I agree that inbreeding is often wrongly maligned. BUT, if you're heavily inbreeding and there happens to be some HA in the line, you're going to emphasize the HA way more than if you weren't inbreeding.