I apologize for being a bit brutal here, but when somebody's suicidal, it's really loving obvious. If you can't pick up the various cues that sometimes show themselves weeks before, then you're blind and deaf. Nobody just sits down one day and commits Self Delete, there have to be underlying problems that are extremely noticeable. I've dealt with a few "Self Delete scares" in my time, and nobody can just hide their issues away. Although I do feel sorry for your loss, I'm questioning how such severe issues were able to pass unnoticed, potentially for weeks.
