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.

Texas preacher Matt Baker preyed on young women for years while leading a double life as a mild-mannered husband and father.

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.

When they married in Texas in 1994, Kari Baker thought she had found the perfect Christian man to start a family with.

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 April of 2006, a horrific night of violence ended with Jeremy Steinke and J.R. fleeing from the Canadian police.

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 2006, 23-year-old Jeremy Steinke met and carried on a pedophilic relationship with a rebellious 12-year-old Canadian girl.

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.

When she wouldn’t break off her friendship with Joel Tillis, Ivrin Bolden Jr. murdered Brenda Spicer and left her body in a dumpster in 1987.

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.

In the late 1980s, college sweethearts Joel Tillis and Ivrin Bolden, Jr. seemed like a couple destined for success. However, when Joel started to push away, Ivrin searched for someone else to blame.

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 1991, a man from Northern Ireland found himself caught between two women: his wife and his mistress.

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

In August of 2018, the picture perfect marriage of Chris and Shanann Watts ended in violent tragedy.

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.

From the moment they married in 2012, Colorado couple Chris and Shanann Watts seemed to have the picture-perfect life. In reality, an extramarital affair, financial struggles, and conflicts with extended family were tearing the couple apart, all leading to a shocking, brutal crime that would end their marriage for good.

Today we're looking into the crimes that affect wealthy victims. While we may assume the wealthy are most often the victims of crimes like robbery, in reality, the wealthy are less likely to be victimized than the poor.

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.

What motivates someone to assassinate a President, or their musical hero? Today we’re highlighting three notorious assassinations and the perpetrators behind them.

Conrad Roy and Michelle Carter began an online relationship in 2012. Over the course of the next two years, through thousands of texts and social media messages, Conrad confided in Michelle his struggles with depression and suicidal ideation. Their relationship would end in tragedy in 2014, and even become the subject of a police investigation.

Stars—they’re just like us. So why are we so intrigued by celebrity death, and why is the intrigue amplified when the death is unexpected?

Throughout Larry Swartz’s childhood in the 1970s and 80s, problems with his adoptive family continued to intensify.

For almost 20 years, Fred Jablin and Piper Rountree, shared their lives together in Virginia, welcoming three children and a menagerie of pets.