Men commit murder 10 times more often than women. But just because a woman's fingerprints aren't at the crime scene doesn't mean her fingerprints weren't on the plan. We look at some memorable cases of men killing for their sweethearts.

Because of the lack of statutes acknowledging Munchausen by proxy—and the general confusion about what this abuse looks like—law enforcement and courts often struggle with how to prosecute this type of medical child abuse, say experts.

Gypsy Rose Blanchard and her then-boyfriend, Nicholas Godejohn, are both in prison for the 2015 murder of Gypsy's mom, Dee Dee Blanchard, who was believed to have an attention-seeking psychological condition known as Munchausen syndrome by proxy. A&E True Crime spoke with her father, Rod Blanchard, to learn how Gypsy is doing in prison.

Gayani DeSilva, M.D., a child and adolescent psychiatrist and author, tells us about the warning signs of Munchausen syndrome and why cases involving the disorder—like that of Gypsy Rose and Dee Dee Blanchard-—are so horrifyingly fascinating.