This Is Why She's the Most Hated Inmate in the World

You would think that hardened criminals that end up in Supermax are not afraid of no one and nothing. But you would be wrong. Some of the criminals behind bars are so heinous, that even the biggest, baddest and strongest criminals shriek at the sound of their name.
From a killer so prolific he is one of the most lethal people in history, to an evil genius that was way too smart for the FBI, here are the 20 Most Hated Inmates In The World