There are a lot of true crime stories that are so infamous it feels like everyone and their mother knows about them — Ted Bundy, the Zodiac Killer, Jeffrey Dahmer...the list goes on, and on.

But on the flip side, there are actually many true crime stories not a lot of people have heard about before.
For example, have you ever heard of the Papin sisters who assassinated their boss back in the 1930s?

Or did you know about "Cicada 3301" — a nickname that was given to three sets of anonymously posted internet puzzles from the early 2010s that focused on data security, cryptography, and internet anonymity?

Perhaps you've gone your whole life not knowing that the R.E.M. song “What’s the Frequency, Kenneth?” is a reference to the 1986 crime where CBS Evening News anchor Dan Rather was attacked and mugged by two men while one of them repeatedly said, "Kenneth, what is the frequency?”
