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A man is convicted and sentenced to life in prison for two counts of solicitation of capital murder after he and his veterinarian girlfriend attempted to hire someone to kill their exes.

Sexual harassment in the workplace and potential solutions.

A look at the two most important women in Prince Harry's life, his mother, Princess Diana, and his soon-to-be bride, Meghan Markle.

Peter Billingsley, the star of "A Christmas Story," discusses some of the most memorable and beloved Christmas movies of all time, including interviews with the stars, and behind-the-scenes looks at some of the most memorable moments from the films.

Tito Jackson's ex-wife Dee Dee Jackson tragically drowns; Jackson family finds death of Tito Jackson's ex-wife suspicious; Dee Dee Jackson's sons won't object to mom's convicted killer being paroled.

Successful Houston veterinarian finds love again with younger doctor; Authorities set up an elaborate sting operation to catch a him after he convinces her they need to hire a hit man to kill their exes; Man speaks to 20/20 while he awaits trial behind bars.

Brother recalls the 2011 day he saw his sister, Holly, alive for the last time; Missing 20-year-old Tennessee nursing student Holly Bobo's remains are found by ginseng hunters; Jury returns with verdict in man's trial for Holly's murder.

Route 91 Harvest Festival underway in Las Vegas, filling open air plaza on The Strip with country music lovers as shooter prepares in hotel; Woman describes moment when husband was shot while holding her; Remembering the Las Vegas mass shooting victims.

Multiple women describe alleged encounters with Harvey Weinstein; Angelina Jolie, Gwyneth Paltrow claim Weinstein harassed them; What could happen next for Harvey Weinstein.

Twenty-seven years after a Florida woman was fatally shot on the doorstep of her home by an assailant in a clown costume, police arrest her husband's new wife.

Vegas gunman's motivation remains a mystery weeks after deadly attack; Conspiracy theories emerge in Las Vegas shooting; Vegas shooting survivors say they still have nightmares, trouble sleeping.

When former Marine discovered teen son talking to ISIS recruiters; How ISIS uses the internet to target young Americans for recruitment; The fight against ISIS's reach on America's youth.

Baillie Gibson becomes one of the best discus, shot put athletes in the country; College athlete, coach disagree whether sexual relationship was consensual; Former coach Craig Carter speaks out about Baillie Gibson case.

20/20 airs a very special episode that features Nathaniel Newman, a boy with the very rare cranio-facial condition Treacher Collins syndrome.

Peter Billingsley, the star of "A Christmas Story," discusses some of the most memorable and beloved Christmas movies of all time, including interviews with the stars, and behind-the-scenes looks at some of the most memorable moments from the films.

Accomplished fashion writer found stabbed to death at her home; Police ask men in Truro, Massachusetts for DNA samples in murder investigation; Chris McCowen shares his side of the Christa Worthington case.

Meghan Markle's engagement to Prince Harry; interviews with those who know Meghan; an in-depth look at Meghan's life, family, humanitarian work, and career.

Former members of NXIVM, a professional coaching company, speak out about their experiences in the alleged secret society, NXVIM's litigation tactics against former members and critics.

Mom says daughter suffered from illnesses and needed wheelchair, feeding tube; Gypsy Blanchard on what happened the night mom was stabbed to death; Man says he feels ex-girlfriend used him to kill her mom.

A woman convicted of killing her husband claims she was blacked out during the murder that she says occurred during a home invasion.

Interviews with people involved in the case of Shanann Watts, who was pregnant when she was murdered by her husband, who also killed their two young daughters.

The gymnastics sexual abuse scandal that included accusations by Olympic gymnasts continues to dominate headlines as an astounding 156 women have testified against ex-USA Gymnastics doctor Larry Nassar.

Slender Man stabbing: Parents recall what happened that morning; 12-year-old survives being stabbed 19 times by her friends; What is Slender Man, the figure that motivated two girls to stab their friend.