We talk to experts to find out the disturbing reasons why some men kill the person with whom they've vowed to share a lifetime.
The Keepers asks the question "Who killed Sister Cathy?" It may be hard to imagine raising a hand against a women of the cloth, but there are, unfortunately, many other shocking cases of slain nuns.
Check out the A&E syllabus for JonBenét Ramsey 101.
Check out our top 10 picks for crime-related podcasts.