Former USA Gymnastics national team coordinators Bela and Martha Karolyi talk with Savannah Guthrie about the Olympic sex abuse scandal; Olympic gold medalist McKayla Maroney describes the sexual assault she endured.

A bizarre cyber-revenge case lands a young woman in jail; an unexpected twist reveals the real culprit; a Tennessee resident is murdered in her bedroom; investigators struggle to find answers.

Four families that barely escaped the catastrophic Montecito, Calif., mudslides alive, and the rescuers who risked their own lives to help.

Former DEA agent Andrew Hogan details his search for Mexican drug lord Joaquín "El Chapo" Guzmán with never-before-seen videos and photographs.

When a complicated Texas love triangle ends in murder, a pink gun leads to an arrest, until new evidence prompts investigators to rethink the case.

When dozens of homeowners find themselves on a Napa Valley hilltop surrounded by fire, two teams of daring chopper pilots risk their lives in a mission to rescue them.

A woman's death is initially ruled a suicide, but when a new investigation begins, police begin to suspect murder.

A former marine who once was the hero for a woman in an abusive marriage may have let his desire to help go too far.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

A murder outside Pleasantville, Iowa, divides a family and forces one man to take the investigation into his own hands.

The mysterious death of a young mother in Ohio and the ensuing investigation that spans years and multiple states.

A couple's anniversary celebration ends in murder during what appears to have been a home invasion, but investigators believe the suspect might be connected to the victim.

A look at the case of con man John Meehan, including interviews with his wife and her daughter, his ex-wife, law enforcement officers, and the Los Angeles Times reporter who shined a spotlight on the story.

A small-business owner and his bride are murdered shortly after their wedding; police suspect a family feud is the cause.

An anonymous letter leads authorities investigating the poisoning death of a chiropractor to an unlikely suspect.

A comprehensive look at the 1989 murders of José and Kitty Menendez by their sons, Lyle and Erik; featuring interviews with key players in the case, including Lyle Menendez.

Author Rachel Jeffs talks about life as the daughter of self-proclaimed prophet of the Fundamentalist Church of Jesus Christ of Latter-Day Saints Warren Jeffs; officials investigate when a woman is found murdered in Fort Worth, Texas.

A young father's murder at work leads investigators to deep secrets about sex, friendship, religion and family.

A community comes together to search for a young woman who goes missing from a Halloween party.

As a murder victim's sisters dedicate themselves to finding the killer, an unexpected source turns the case upside down.

Lester Holt offers a report of the day's major international and domestic news stories each weeknight. In addition to the top news of the day, broadcasts feature human-interest segments called Making a Difference, which spotlight ordinary Americans making the lives of those around them better.

The hourlong broadcast includes insightful interviews with notable figures from the worlds of news, politics and entertainment, hosted by Elizabeth Vargas and David Muir. A revolving team of journalists from ABC News also contribute investigative stories.

For almost as long as there has been television, there's been "Meet the Press." The hourlong Sunday morning public affairs program has featured interviews with countless U.S. and world leaders, and has reviewed, analyzed and discussed the news of the week -- all while looking toward the week ahead.

This newsmagazine investigates intriguing crime and justice cases that touch on all aspects of the human experience. Over its long run, the show has helped exonerate wrongly convicted people, driven the reopening -- and resolution -- of cold cases, and changed numerous lives. CBS News correspondents offer an in-depth look into each story, with the emphasis on solving the mystery at its heart. The program and its team have earned critical acclaim, including 20 Emmys and three Peabody Awards.