This is so shocking to hear, LibrarianChick, and a terrible set of circumstances, no matter what age the person involved. And as Duffy also appreciates, it really kicks home when it's someone so close to you. My sister died in the same way at the age of 44 six years ago, leaving a 10 yr old and 15 yr old. In some ways, I'm still in shock over the loss, so can totally appreciate just what you're describing.