Honestly, I almost cried watching this video. Watching the video, knowing that this girl later died, made me feel so sorry for her. In addition to that,watching this video felt like a weird kind of voyeurism. At least the first impulse to watch was. It's somewhat odd to watch a video from a young girl basically killing herself. That sheds also a light on us, namely that somewhere in our psyche we have a similar interest in watching a girl snorting the biggest line in history of drug consumption, just like her peer group show in the video.
Nobody knows what makes someone behave like this. It's just wrong to assume human beings a free in their decisions. You can clearly tell that she's trying to receive credit from her peer group. You can almost feel it in every move that she makes (e.g the peace-sign in the end). Someone who thinks it is necessary to engage in such an act of pure self-destruction for being loved did almost certainly experienced shit in his life. Trust me on that.