People are trading bitcoin for goods and services on the illegal marketplaces of the dark web, where the easy, instant flow of the cyptocurrency allows users to tap into their darkest natures--all from the anonymous comfort of their home computers.

Sgt. Leverett talks to A&E True Crime about how he gets people to tell the truth, the unexpected places he's found drugs (butts aren't that unusual) and what would surprise fans to know about his K-9 partner Flex.

While one of the biggest drug kingpins in Washington, D.C. remains in a federal penitentiary, his namesake son, Tony Lewis Jr. is helping children with a parent in prison. He talks to us about his struggle getting people to understand that when a person goes to prison, their family goes with them.

Q&A with Nick Bilton on his book, "American Kingpin: The Epic Hunt for the Criminal Mastermind Behind the Silk Road," about Ross Ulbricht's extremely successful (and totally illegal) website.