Friend Recalls Moment She Turned in Alleged 'Road Rage' Killer
"The first words out of his mouth [were], 'I got them,'" Khatelyn Krisztian said
'Road Rage' Shooting Victim's Kids Regret What Happened
Tammy Meyers was shot and killed in her driveway on Valentine's Day 2015.
Abandoned 'Manger Baby' Reunites With Family 44 Years Later
DJ Williams was found abandoned in a church's nativity scene in 1971.
Woman Has Chance Encounter With Man She Believes Is Long-Lost Brother
Gina Lozada saw Chris at a casino before she told him they might be siblings.
Woman Searching for Father in Decades-Old Mystery
Amanda Holdiness was raised by a single mother, her grandmother and godparents.
Michigan Lawmakers Caught in Affair Cover-Up Speak Out
Todd Courser and Cindy Gamrat were both married with kids during their affair.
Inside Michigan State Representative's Secret Affair Cover-Up
Todd Courser and Cindy Gamrat had an extramarital affair while in office.
Daughters of Texas Murder-for-Hire Killer Discuss Dad's Involvement
Prosecutors claimed a Texas doctor hired David Shepard to kill another doctor.
Vargas Is the Co-anchor of '20/20' on ABC News
Weekend Anchor, "World News with David Muir" Co-Anchor, "20/20"
Watch: Las Vegas Mom Shot and Killed After Giving Daughter Driving Lesson: Part 1
Brandon Meyers and Kristal Meyers' mother Tammy Meyers was shot in her head in front of their house.
Watch: Alleged Vegas 'Road Rage' Killer's Friend Turns Him In: Part 2
Days after Tammy Meyers' was shot, Khatelyn Krisztian said she thought her friend Erich Nowsch may have been involved.
Watch: Las Vegas 'Road Rage' Victim Knew Her Alleged Killer: Part 3
While being interrogated by police, Erich Nowsch broke down saying, "I didn't mean to hit no mom."
Watch: Friend Believes Alleged Vegas 'Road Rage' Killer Felt Threatened: Part 4
"There's no doubt in my mind that he felt absolutely threatened, that 'it was me or it was them,'" Khatelyn Krisztian said.
Watch: What District Attorney Says Happened Night of 'Road Rage' Shooting: Part 5
Steve Wolfson says he believes Kristal Meyers' story and that the night was a series of tragic coincidences.
Watch: How Vegas 'Road Rage' Shooting Victim's Family Is Moving On: Part 6
Tammy Meyers' husband Bob Meyers and their four children are moving out of the home she was shot in front of.
Watch: Columbine Shooter's Mother Sue Klebold Speaks Out in Diane Sawyer Exclusive: First Look
Klebold gives her first television interview nearly 17 years after the tragedy, airing in a special edition of "20/20" on...
Full Episode: 20/20 10/30/15: Troublemaker
Leah Remini Recalls When She First Got Involved in Scientology; Leah Remini on Being Friends Tom Cruise, His Wedding to Katie...
Full Episode: 2020 09/25/15: The O.J. Simpson Tapes
O.J. Simpson: Inside the Case of the Defense 'Dream Team'; Hear O.J. Simpson Speak For the First Time Under Oath
Full Episode: 20/20 09/04/15: Pope Francis and the People
Pope Francis Asks Chicago Teen to Sing for Him; Pope Francis Calls Los Angeles Mother a 'Brave Woman'; The pontiff was...
Full Episode: 20/20 06/19/15: 'The Wolfpack'
'Wolfpack' Brothers Grew Up Locked in NYC Apartment for Years; Chance Encounter With Filmmaker Changes 'Wolfpack' Brothers'...
Full Episode: Bruce Jenner - The Interview
Bruce Jenner shares an exclusive and wide-ranging conversation with Diane Sawyer.
Full Episode: 20/20 02/27/15: A Nation of Women Behind Bars: A Diane Sawyer Hidden America Special
Women Behind Bars and the Families They Left Behind; The Duel Between Inmates and Officers Over Prison Contraband; What Life...
Full Episode: 20/20 03/18/15: The Untold Story of 'The Sound of Music'
Fifty years after its release, Julie Andrews returns to Salzburg, Austria, with ABC News' Diane Sawyer.