A San Diego mother and daughter pleaded not guilty on Thursday to charges stemming from an attack by their pit bulls on a 75-year-old woman that forced doctors to amputate part of her arm and leg. Alba Medina Cornelio, 39, and her daughter Carla Ramirez Cornelio, 19, were arrested on Wednesday night, four days after authorities say two of their dogs escaped through a fence and mauled neighbor Emako Mendoza in her yard. Both were ordered held on $350,000 bail during an arraignment in San Diego Superior Court, where they each face two felony counts of owning an animal that...