The Best Episodes of 20/20 Season 42

Daniel Wozniak was a community theater actor in California when he was arrested for the murders of Sam Herr, a war veteran, and Julie Kibuishi, a college student and dancer, in May 2010.

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26-year-old face transplant recipient: 'I see me'; Face transplant recipient's mom learns about renowned reconstructive surgeon

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A woman shoots her three young children, seriously injuring two and killing one.

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14-year-old girl reported missing after she doesn't come home from school; Kidnapping survivor recalls life in captivity and how she kept hope alive.

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A former Uber driver terrorizes the city of Kalamazoo, Mich., on Feb. 20, 2016, killing six people and seriously injuring two others.

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A high school cheerleader and football player's tumultuous relationship; Teen found dead in her bed from a gunshot to her head; Today, convicted killer apologizes for shooting ex-girlfriend

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From Michelle Obama's humble Chicago upbringing to the White House; Michelle Obama opens up about miscarriage, IVF and marriage counseling

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Chris and Shanann Watts' seemed to be in love, say friends, family; In a shocking statement, Chris Watts describes how he killed his wife; Shanann Watts and her two daughters are found dead.

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In a case that remains shrouded in mystery, actor Robert Blake speaks to "20/20" thirteen years after he was acquitted in his wife's murder.

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Steven and Cary Stayner: The tale of two brothers' horror and heroism.

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When 19-year-old Sarah Stern's car is mysteriously found on a New Jersey bridge, a former classmate comes forward with information that helps authorities discover what happened.

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Revisiting the 1989 case of a female jogger who was brutally raped and beaten in New York City.

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When a woman secretly records her husband's affair, she snaps and kills his girlfriend and herself.

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Detectives use DNA evidence to solve a cold case involving the murder of an 18-year-old woman.

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a 21-year-old Miami hotel guest has no memory of being attacked, raped and left for dead.

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A mother on death row for the unthinkable. Now the court orders testing on crucial crime scene evidence.

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A lifelong hustler discovers the strip club scene; Strip club workers' new hustle takes a dark turn; Doctor almost swindled out of $100,000 after three dates with woman.

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11-year-old arrested for his pregnant soon-to-be stepmother's murder: Why police believe ex-boyfriend was not connected to woman's murder; What it's like to be 11 years old and accused of murder

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Former hockey star's young family shattered by wife's murder at home; Manhunt begins for brutal killer of mother of two; 7-year-old daughter becomes key eyewitness in attack on mom.

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Jim and Tammy Faye Bakker were among the most famous televangelists in America when their religious empire came crashing down amid sex and financial fraud scandals.

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When Stacey Castor's second husband dies suddenly, investigators learn her first husband is also dead. Castor is suspected of murdering her second husband and poisoning her own daughter.

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Actress Rebecca Schaeffer is shot point blank at the door of her Los Angeles home by her longtime stalker;

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A man convicted of murder has his conviction overturned by an appeals court and waits to see if a higher court agrees it should be overturned.

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When a woman is found unresponsive in her bathtub, two of her daughters suspect their father is responsible.

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Interview with Elizabeth Thomas, who was taken at age 15 by her Tennessee high school teacher, resulting in a 38-day nationwide manhunt.

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