Latisha Lawson says she was trying to drive out the demon 'Marzon'
                                
                                
                                    (Newser) -
                                    A mother killed her toddler son as she was trying to "exorcise" a demon from his body, she told Indiana jurors. She accidentally crushed her son's neck as she attempted to stop him from spitting up  a concoction of oil and vinegar  she hoped would drive out the...