8. Claudia Ochoa Felix
Can you picture Kim Kardashian as the glamorous ringleader behind one of the world's most deadly and ruthless gang of killers? No? Well, it just so happens that Claudia Ochoa Felix - dubbed the "Kim Kardashian" of the Mexican gang scene - is allegedly the head of South American hit squad Los ntrax. Or, as she has been so-called, "The Empress of Los ntrax". A multi-millionaire who travels with a host of bodyguards, in 2014 the 28-year-old reportedly became the head of the elite contract-killer squad for the Sinaloa drug cartel - known by US intelligence "as the world's most powerful drug-trafficking organisation". The contracted-killer squad have allegedly murdered upwards of 300 people in the last few years - including hanging three frozen bodies from a bridge - and it is believed Felix assumed control of this militant wing of the gang following her boyfriend Jose Rodridgo Arechiga Gamboa's arrest. Felix - who regularly posts photos on social media showing herself in swimsuits, glamorous clothing and holding weapons including a custom-made pink AK-47 - is believed to have been involved in dozens of murders, and has now supposedly been elevated to a position where she can carry out further devastation. This is not the stereotypical dumb model - she is certainly not someone to be messed with...