Maybe this is one of the times that a tabloid is partially correct.
The thing about tabloids is...since they don't have ANY scruples, they can print stuff before it's been proven. This gives them a jump on the few stories that turn out to be true. The other stories just remain “gossip,” but the “news” is out there first (although not always fully accurate!!!)
If the suicide notes, which are online, she left to her mother and sister (two notes) are forgeries, then maybe it wasn’t suicide.
She had a very odd, juvenile way of writing so it should be quite easy to determine if they’re authentic. She refers quite specifically to killing herself (specifically, but not in so many words).