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A Vegas showgirl disappears just hours before the biggest break of her career, leaving behind a trail of mystery; a surveillance clip, hidden-camera footage and a 911 call pull back the curtain on her surprising personal life.

After a young mother is found murdered, seemingly at the hands of a home intruder, investigators uncover a far more intricate plot than the initial evidence suggests.

An 11-year-old is kidnapped while biking home, leaving his parents searching for answers; another previously abducted victim speaks out after helping solve the mysterious case.

Celebrating Dolly Parton's life, music and legacy -- featuring never-before-seen interviews with Dolly herself, unforgettable interviews with Robin Roberts and Barbara Walters, and reflections from those who knew her best.

Police and surveillance footage show the obsession of a stalker who tormented a young woman -- even holding her in a soundproof box -- while she fights for her life and freedom.

Early morning news and entertainment program that covers important issues with key figures from around the world and a wide spectrum of topics, including medicine, finance, consumer issues, computer technology, education and gardening.

Early morning news and entertainment program that covers important issues with key figures from around the world and a wide spectrum of topics, including medicine, finance, consumer issues, computer technology, education and gardening.

Anchor George Stephanopoulos and co-anchors Martha Raddatz and Jonathan Karl interview top newsmakers and officials, with reporting from across the country and roundtable debates over the hottest political issues.

Nashville hosts a pair of Top Ten teams when Louisville takes on Texas in the Broadway Block Party. The Cardinals come into the match ranked sixth while the Longhorns dropped from second to ninth after a loss to top-ranked Nebraska.

Men's and women's Round of 16 tennis action from the U.S. Open, held at the USTA Billie Jean King National Center in Flushing, N.Y.

Breaking news coverage and live video.

Delivering the news that matters most.

A deer who tries to eat a chunk of a woman's hair when she poses for a picture; the ongoing battle of cats versus dogs; a musical salute to runaway cars.

Ole Miss plays Louisville at Nissan Stadium for a Sunday prime-time Week 1 kickoff. Both programs look to establish early momentum in their season opener after finishing 13-2 and 9-4 respectively in their college football campaigns last year.

An 11-year-old is kidnapped while biking home, leaving his parents searching for answers; another previously abducted victim speaks out after helping solve the mysterious case.