In the summer of 1849, 28-year-old Marie Manning invited her boyfriend, Patrick O'Connor, over for dinner.

Today, we’re discussing Narcy Novack. In 2009, her marriage to Florida millionaire Ben Novack Jr. ended in what most people would label a tragedy…

Today, we’re discussing Mary Elizabeth Wilson. Dubbed the “Merry Widow of Windy Nook,” Mary’s lovers had a strange habit of suddenly dropping dead...

Today we’re discussing cases in which a criminal tortured their victim. What would compel someone to torture another person, and what are the lasting effects on a victim who was tortured?

In October of 1994, Susan Smith, committed the unthinkable: she drove her car into a South Carolina lake, with her two young sons trapped inside.

Today we’ll focus on wealthy criminals. We’ll discuss what leads high-status individuals to commit crimes, as well as the consequences they face once captured.

In October of 1994, Susan Smith drove her car into a South Carolina Lake as her boys slept in their carseats.

What makes someone so vengeful, they’re willing to take a human life? Using clips from across the Parcast Network, we’ll search for clues by taking a closer look at some of history’s most infamous revenge killings.

When her daughter failed to make the cheerleading squad on her first try, Texas mother Wanda Holloway knew there was always next year. But by 1991, it seemed pretty clear—some things are worth killing for.

Today we’re discussing the deaths of American political figures. Whether their demise came at the hands of an assassin, or a political rival, the loss of each of these leaders left an indelible impact on U.S. history.

In the small, industrial town of Channelview, Texas, everyone was content with what they had—except Wanda Holloway.

Today we’re discussing serial killers’ first murders. What did the murders look like and how does a killer’s modus operandi change after their first slaying?

In the early 1900s, Carry Nation decided to take her temperance fight national.

Today we’re discussing the clues that criminals left behind and the ways in which the police used them to hunt down their suspect.

In the mid-1800s, after her husband died from alcoholism, Kansas-native Carry Nation developed an interest in the temperance cause.

Today we're discussing "M.O.s", or the "modus operandi" of murderers. We'll talk about the tactics killers use on their victims, and what those methods say about their psyches.

Although she initially seemed eager to help her boyfriend Conrad Roy move past his struggles with depression, in July of 2014 Michelle Carter’s reaction changed.

They began an online relationship in 2012. Over the course of the next two years, through thousands of texts and social media messages, Conrad Roy confided in Michelle Carter his struggles with depression and suicidal ideation.

Today we’re exploring cases of indoctrination. We’ll discuss how cult leaders, secret societies, and kidnappers gain control of their victims and what makes individuals vulnerable to malicious manipulation.

After her attempt in 1975 to assassinate President Gerald Ford failed, Sara Jane Moore was incarcerated. Her contempt for authority ultimately resulted in Moore mounting an audacious prison escape.

Today, we're looking at some of the most fascinating criminal trials in history. We'll see how certain tactics used by attorneys influenced juries, changed outcomes, and provided some of the most unexpected legal twists and turns in recent memory.

In the 1970s, Sara Jane Moore’s activism in San Francisco's radical movement led to her being chosen to work undercover for the FBI.

Today we’re discussing cases of abduction, and examining some of the most infamous kidnappings throughout true crime history.

In 2002, after twenty years of marriage, 44-year-old Susan Polk of San Francisco, called it quits with her husband, 70-year-old Felix Polk.

Today we’re discussing cannibals and vampires. We’ll examine strange cases of predators who drink blood and feast on flesh, and delve into their unique psychology.