Mitchell Henderson (died April 20, 2006) supposedly killed himself over losing an iPod and getting bullied for being a wimpy white kid. Mitchell's parents set up a tribute MySpace page for their dead son, which a lucky /b/tard happened to stumble upon and forward to the rest of the collective. In wake of Mitch's death wre hundreds of misspelled comments from his supposed friends calling him "an Hero", a phrase which quickly caught on with the invading anons and has since become a term for a person that causes a lollercoaster via suicide.
Mitch also happened to die on Hitler's birthday; the anniversary of the Columbine massacre, an epic feat of an heroism by Dylan Klebold and Eric Harris; and also happens to be April 20th. 4/20 will be known as An hero day from now on.