Imagine it.

You and eleven others walk into a police precinct. In front of you are four enclosed interrogation booths. Each empty booth has a single table, four chairs, and a large one-way mirror. You can see in, no one can see out. 

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You are here to solve a savage murder, and you have less than an hour to do so. In the background, a clock ticks loudly. 

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Can you do it?