im not crazy about overly bloody pictures... i like blood if it has to do with a dramatic situation or plot, but not if its there JUST for the purpose of adding gore...
The death of the Tucker family.
Since the father was responsible for his daughter being a pained chimera that couldn't be changed back, you can't really feel bad for him, in fact he was the only character sent to hell in the memoriam pages for Fullmetal Alchemist.