A mother's unwavering crusade for justice for her daughter's murder leads to the hidden clue that helped catch a killer in a new episode of "20/20" airing on Friday, January 30.

A teenage musician is murdered in her home and another young woman is attacked nearby in a new episode of "20/20" airing on ...

ABC’s official description for this new episode of 20/20 reads like this, “When 20-year-old Amanda Plasse was discovered ...

ABC 20/20 revisits the Amanda Plasse murder, the evidence that led to Dennis Rosa-Roman’s conviction, and how a 2024 court ...

LOS ANGELES -- In a special edition of "20/20," ABC News Studios pulls back the curtain to reveal the magic of Disneyland as it celebrates 70 years of happiness in "The Happiest Story on Earth: 70 ...

Mr. Cook has chosen to breach the confidentiality agreement in the divorce settlement, a provision agreed upon in court to protect the children and allow them to put this ordeal behind them,” the ...