When a mother of four dies unexpectedly on Valentine's Day, her death is attributed to natural causes, but a detective suspects that someone murdered the woman.

When one woman breaks off her relationship with a boyfriend she says abused and stalked her, he moves on to something even worse.

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.

After a studious University of Utah athlete is found murdered on campus, it is revealed that she had reached out to the campus police for help multiple times before her death.

Two young women are shot and left for dead on a beach in Texas; a man is eventually convicted, but a stunning twist raises doubt.

The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.

The latest updates in the case of a missing young Oregon woman that led to an intense manhunt after a suspect embarked on a two-state crime spree.

The discovery of a 19-year-old's car abandoned on a bridge in New Jersey turns into a missing person case that evolves into a monthslong homicide investigation; police discover a plot involving money, close friends and a fatal betrayal.

A dancer is murdered in her Virginia home; after interviewing a series of suspects, detectives realize the case is much more complicated than previously thought.

A Connecticut bank executive is targeted by criminals who force him to rob his own bank.

A mother in Pennsylvania disappears after co-workers see her leaving for lunch.

The father of an Alabama teenager calls the police after he returns home to find his son had thrown a party, leaving the place trashed; 11 minutes after the deputy leaves the house, another 911 call is placed reporting a shooting at the residence.

When a young woman fails to show up to work and her mother rushes to her home to try to find her, what she discovers begins an investigation that leads to a suspect no one imagined.

Two young girls in Washington are snatched in broad daylight while riding their bikes; the case goes unsolved for decades, until a new detective with a local connection to the story tries to solve the mystery.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

Key players in the case of Rod Covlin, a New York man found guilty of murdering his wife for her $5.3 million fortune and attempting to frame his then-teenage daughter, share their stories.

The ex-girlfriend of Patrick Frazee, the Colorado man accused of murdering his fiancée Kelsey Berreth in November, shares her story.

The investigation into a woman's mysterious disappearance from inside her home in Washington, D.C., reveals a connection to the decades-old disappearance of another woman.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

The friends of a a Georgia father accused of murdering his ex-wife come together to prove he is innocent, while prosecutors count on his young children to testify against him.

A daily live broadcast provides current domestic and international news, weather reports and interviews with newsmakers from the worlds of politics, business, media, entertainment and sports. Additionally, specific segments such as Today's Money, Today's Kitchen and Today Throws a Wedding target specific lifestyle issues, and the show's anchors frequently report on special themes from around the globe.

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

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.

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.

As part of its attempted reinvention, MSNBC has been moving away from airing opinion-based shows during the day, replacing them with blocks of news programming to boost the network's breaking news coverage. Kate Snow, who has years of experience as a journalist for national networks, anchors this portion of the afternoon block. "MSNBC Live" details the day's developments in news and politics to keep viewers aware of the latest happenings.

As part of its commitment to providing breaking news coverage throughout its daytime schedule, MSNBC has a block of "MSNBC Live" programming throughout the day, with different anchors splitting up the hours. Ali Velshi hosts this block. As is the case with other shows under the "MSNBC Live" banner, Velshi details the day's top news and political developments in Washington and across America.

Formerly a block of several hours of news coverage airing daily, including weekends, "MSNBC Live" is now the title of an hourlong show providing breaking news coverage weekday mornings. Journalist Thomas Roberts anchors the show that includes analysis and interviews surrounding the news of the day. "MSNBC Live" also includes feature stories and in-depth special reports from contributing anchors and correspondents as well as weather forecasts from MSNBC's sister network, The Weather Channel.