A group of investigators work around the clock to free an innocent man convicted of murder

What kind of person tortures and kills innocent animals and why do they do these things?

The results of this investigation are shocking and they reveal a surprising, and very dark side of the criminal soul.

In the 1870s,  thousands of people poured into the mining town of Deadwood Gulch in the Black Hills of South Dakota.

Some of those people are still famous today.   

"Calamity Jane" - known throughout the world as the gun-slinging, bar and brothel owner . 

Wyatt Earp -  the most dangerous of all the gun-slinging US Marshals.

Wild Bill Hickok, a man whose biographers claimed  killed only six people in gunfights.

And there was another person... 

A man whose identity was a mystery until current-day investigators got to work... 

Their trail involved forensic dentistry, genealogy, and, good, old-fashioned detective work to trace the identity of an unknown man dead for over one-hundred-and-twenty years. 

This is the story of two skulls.

It's actually the mystery of two skulls and a long, extraordinary investigation to find the identity of two people.

It is a tale that features one of France's most famous explorers, pirates, shipwrecks, kidnappings, ambushes and, of course, murder...

The pirates of the 1700s were democrats.

Their ships were crammed with men, and women, of all kinds of cultures.

Many were former slaves.

Others were indigenous natives.

Others were our fore-parents escaping a lifetime of servitude as agricultural serfs.

The pay level between a common sailor and a captain on a pirate ship was only twice as much. However, that pay could be massive. Edward "Black Beard" Teach was worth $12 million. Captain John Bowen, a Creole pirate was worth $40 million. But the greatest of them all was Black Sam Bellamy - 300 years later, Forbes magazine would estimate that "Black Sam" was the richest pirate of all time.

And then "Black Sam" sailed into a dark and stormy night off the coast of Cape Cod and the legends began...

It's the world's oldest profession - sex work.

In the 21st century there is, of course, a high tech spin to a very old issue.

OnlyFans is spoken of as the 'Uber of sex work'. A disruptive social media platform that purportedly allows sex workers to communicate and make money from their customers without the dangerous control of their pimps.

However, there's a dark side to this new phenomenon.  Critics are claiming that far from saving people from exploitation, human trafficking and underage harm sites like OnlyFans are doing the exact opposite.

John Gorman: The Crime With No Name

How do you solve a crime in a world that doesn't even exist?

How do you solve a crime involving an NBA star, a computer hacker and hundreds of thousands of dollars in fraud that touches on every internet transaction that you ever do?

Welcome to the multi-billion dollar world of criminal Internet real estate.