This episode is rated a 4 (on my Serious Crime Scale). It's the story of Lauren Spierer, a 20-year-old Indiana University student who seemed to disappear without a trace. But THIS story, this episode, has several possibilities of what might have happened to her. You see, in the summer of 2011, Lauren went out one night with some friends, but the last time she was seen seems to have left more questions than answers, especially among the group of friends she was last seen with.