How did ********* die? *Spoiler*

It´s not that important. The movie is a real film noir, so you see all with the eyes of the investigator, in that case Francis. Therefore you never see the act of killing, only the results. But if you realy want to know: Felicity gets beheaded http://www.deviantart.com/art/Felidae-s-Bloodiest-Moments-58954442

I finally watched it an hour ago, but thank you.