Learn more about Aaron Alexis, the gunman killed by police in Monday's Navy Yard shooting.
The picture emerging of the Aaron Alexis, the dead gunman in Monday's Navy Yard shooting, is a study in contrasts -- one of a man who practiced languages and meditated, and another of a cold-blooded killer.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
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From Mrs. Krabappel on "The Simpsons" to Mr. Kotter from "Welcome Back Kotter," check out some of the most memorable TV teachers.