After Tom Kolman's mysterious death, Kingston, New York dentist Gilberto Nunez, who pretended he was with the CIA and was having an affair with Kolman's wife, was tried for his murder.

The British-American anti-virus software pioneer was found hanging in his cell in a Spanish prison hours after a court ruled that he would need to return to the U.S. to face tax evasion charges. But his inner circle has doubts about the manner of his death.

We speak with Rob Sand about the Iowa Hot Lotto fraud scandal, the largest lottery-rigging scheme uncovered in the United States, and his role as the prosecuting attorney for the Iowa Attorney General's Office in the case.

Polygamy is illegal in most of the world, but it is practiced by about 2 percent of its population. We investigate why it is rarely prosecuted in the United States.

In 2018, the New York con man and co-founder of Fyre Festival was found guilty of fraud and sentenced to six-years in prison. What's his life like at the Milan Federal Correctional Institution?

In 2016 and 2017, 'Anna Delvey' scammed hotels, banks and others out of $275,000 while climbing the ladder of high-society and trying to launch the Anna Delvey Foundation.

How widespread is organ trafficking? According to Monir Moniruzzaman, a professor of anthropology at Michigan State University and an expert in illegal organ trafficking, it's happening in almost every country, all over the world.

We speak with Jane Blasio about how she learned she was one of about 200 newborn babies illegally sold through a clinic in McCaysville, Georgia in the 1960s.

Twins Ronnie and Reggie Kray rose to notoriety as nightclub and gambling club owners who were involved in assaults and armed robberies.

Bessie Blount Griffin invented an automatic feeder for patients without limbs. She later became a forensic handwriting analyst.