Same here. Not everyone on my dad's side of the family is bipolar, but all of the relatives on that side that I know well have some kind of mood disorder. My grandfather killed himself too, when my dad was a baby. I wanted to learn more about him after I got diagnosed, but unfortunately my grandmother took it to her grave. Even my dad didn't learn about the suicide until his twenties. It was kept quiet and was considered a very shameful thing. All I know about my grandfather is that he "was a manic depressive" and apparently did some crazy stuff and that he was hospitalized a few times and then finally managed to kill himself. There were several other cases in the family with similar stories, but I don't know any details. My grandmother was really afraid that her (grand)kids would inherit it, but thankfully she never knew that I have it.