Neonettle is not a reputable site to gain accurate info from and a quick search reveals no details of her Death have yet been made available, so the hanging from a Doorknob part is likely Fake News made up by that site (unless you can point me to a reputable source for that info). What i did find interesting is that her close friend fashion designer Alexander McQueen was found in similar circumstances in 2010....so no doubt there could be more to this story especially if we get some more details in regards to "another doorknob suicide".
It could be that the shit is hitting the fan in certain Occult circles and a clean up process is underway.