There's a serial criminal on the loose. But there don't seem to be any clues about who this vicious person is. What happens when a crime is committed and there isn't much evidence? How do police begin to find a suspect? Anyone could have done it, right? Wrong. Criminal profilers can help narrow down the search. Want to know more? You fit the profile of someone who wants to know more about: what kinds of people become criminal profilers; the case of the Mad Bomber in New York City, which was solved by a criminal profiler; how profilers go after computer hackers; and whether you might just have all the characteristics of a future criminal profiler.