Real PD: Kansas City goes behind the scenes with Kansas City, Kansas PD detectives, round the clock, capturing the real-life drama of police investigations in the heartland America.

John and Callahan Walsh celebrate the captures from investigations that left the largest impacts. With the perps finally behind bars, families can breathe easier knowing that justice has been served.

Crime experts explore the motives and modus operandi of female killers. While males are often driven by anger, impulse and destruction, women usually have more complex, long-term reasons to kill.

Gripping clips of kidnappings, break-ins, wild car chases and other crimes rack up millions of views, but the stories behind these crimes are often never told -- until now. This series takes viewers inside the most shocking crimes that went viral.

Examine the twisted psychology of stalkers, as victims share their stories.

Investigation Discovery has made a home for award-winning investigative reporting from all three major broadcast networks. Joining CBS News' "48 Hours" and "60 Minutes" and NBC News' "Dateline," "20/20 on ID" delivers a collection of stories about ordinary people facing extraordinary circumstances. It's hosted by ABC News correspondent John Quiñones, and features the reporters of ABC News' acclaimed series "20/20" who dig beneath the headlines to reveal stories of victims, their families, and the search for truth and justice.

Lurking behind every murder is the truth. But what if the people involved in the case disagree on what the truth is and what really happened? We have to determine who is trustworthy, and who isn't. We must decide which details matter and which ones don't, and whose memories seem clear and accurate. This original series interviews people with conflicting perspectives on a real murder case to reveal the true Killer In Question.

Building on the success of the HATE IN AMERICA special that aired in 2015, Investigation Discovery (ID) and Emmy Award-winning journalist Tony Harris are teaming with premier civil rights advocacy organization, the Southern Poverty Law Center (SPLC) and its legendary founder, Morris Dees, to be the first network to produce a series showcasing stories from the organization’s case files in a new series – HATE IN AMERICA.

In 1993, three teenagers were believed to be responsible for the brutal murder of three eight-year-old boys in West Memphis, Arkansas. Experts delve deep inside the investigation of this triple homicide, exploring the evidence and possible motives.

A three-part documentary series that recounts the notorious killer's crimes, the decades long investigation that captured him, and the effect his brutal murders had on everyone in his orbit, especially his daughter who speaks openly about what it is like to be the daughter of a serial killer.

Stories of real people who face the surreal horror of losing loved ones to vicious crimes. With every tick of the clock, detectives work to seek justice for the families, all while never forgetting the victims whose own dreams were so callously interrupted.

A documentary series profiling attractive female criminals.

A look at a number of murder cases in small, insular communities that went cold before witnesses come forward years later.

All families have secrets, but not like this; behind the closed curtains of suburbia, not all is as it seems; people connected to these families have secrets to hide and will stop at nothing, even murder, to keep their secrets hidden forever.

This true-crime series features individuals who share their heartfelt perspectives of loved ones who fell victim to horrific and senseless acts of crime.

This true crime docuseries takes you deep inside peaceful communities in which a sadistic predator is living undetected. Brought to life by the extraordinary testimony of friends and family of the victims, local residents, and law enforcement, as well as those closest to the perpetrators, these terrifying stories reveal the true horror of what happens when nightmares come true.

A six-part series focusing on the stories of people devastated by a loved one’s murder. Using highly personal, self-shot footage, the show examines the murder and the effect on those left behind.

Some of the New York City's most dramatic true-crime stories from the perspective of the New York Post journalists who covered the cases.

This true-crime series tells stories of actual murders committed not by strangers but by someone the victim knew, someone hiding in plain sight, or someone leading a double life. These wolves in sheep's clothing use deception as a weapon to try to get away with murder.