Wikipedia is full of bios of "not notable" people on Wikipedia.
I find some of editors comments on Wikipedia a bit inappropriate seeing the unfortunate girl is still warm in her grave.
Articles for deletion - Jill Meagher
News article
The Age Newspaper (AU) -Murder victim Meagher may be wiped from Wikipedia
Bios of "not notable" people survive because
1. many editors don't care and couldn't be bothered getting these articles deleted.
2. the article is keep alive by a small group of seasoned editors (occasionally the odd admin) usually connected in some way to that person, who know the Wikipedia "system" well enough to play the "system" to enable the article to survive.
From Australia here's typical example of the later.
Daniel Bowen