Though she couldn’t put her finger on it at first, there was something about José Luis Calva Zepeda that Soledad Garabito Fernández disliked from the git-go. The 55-year-old Mexico City housewife met the psychopatic killer of her daughter Alejandra Galeana in early September, when Alejandra brought Calva home one Sunday afternoon to meet her family over lunch. Alejandra’s new beau struck...