A movie where a troubled teen girl becomes a killer?

can anyone help me out? I'm trying to find the title of a movie I watched years ago. I believe it was based on a true story. I saw it on the lifetime channel. All I can remember was there was a troubled teen girl and she had a boyfriend I think and the two of them went on a killing spree together or something.... show more can anyone help me out? I'm trying to find the title of a movie I watched years ago. I believe it was based on a true story. I saw it on the lifetime channel. All I can remember was there was a troubled teen girl and she had a boyfriend I think and the two of them went on a killing spree together or something. I think they ended up killing her parents and everything. It was from either the 80's or 90's I think. Please help me find this movie. I think it might take place as one that starts with someone getting arrested and then tells the story. If anyone knows any movies like this let me know. I will award a best answer. =)
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