I can't ever imagine feeling alright about someone dying. I try to think of people in terms of what they are outside of what they are to me; sure, they bullied me. But they were someone's son or daughter, someone else's friend, someone else's current or future potential partner, and I don't know what else. Their interaction with me is only a small part of who they are and, although I'd only remember my experience with them as being the one that bullied me and so I'd have negative memories of them, they'd have interacted and would have interacted in the future with others in such different and positive ways. No matter the nature nor the severity of the bullying, I was just one single person whose life they changed in any way. I can't feel anything but sad for their death.