I'm pretty sure the chick in the video was driven mad by her obsession with the group and their beauty and talent. This was the only way she'd be able to have him. Something inside her brain just snapped. You see it when she's holding the voodoo doll and she's furiously stabbing it but has this really twisted and delighted smile on her face and then she laughs. Yeah, she snapped alright. ...There is an episode of Criminal Minds in there somewhere. I'm sure of it.