HUNTSVILLE, Texas -- A Mexican citizen on death row in Texas was executed Wednesday night for the sledgehammer killings of his wife and two children more than 26 years ago. Roberto Moreno Ramos was condemned for the 1992 deaths of his 42-year-old wife Leticia, 7-year-old daughter Abigail, and 3-year-old son Jonathan at their home in Progreso, located along the Mexico border. When asked by the warden if he had a final statement, Ramos thanked the Mexican consulate for its assistance with appeals in his case and said he was grateful for "the humane treatment I got in prison in Texas."...