Man Who Killed Neighbor Over Tree-Trimming Feud Has No Regrets
Michael Vilkin said it was self-defense when he shot his neighbor John Upton.
How a Simple Dispute Between Two Neighbors Ended in Death
It all began when one man wanted to clear trees on his land.
Family Without Answers After Neighbor Dispute Ended in Death
Michael Vilkin claims shooting John Upton was self-defense.
Friendship Ends in Murder When Teens Kill Best Friend
Skylar Neese was murdered by her best friends because they "didn't like her."
Family Friend Shocked That Teen With 'Potential, Morals' Turned Murderer
Rachel Shoaf is now in prison for stabbing 16-year-old Skylar Neese to death.
Nanny Who Wouldn't Leave Says She Feels 'Taken Advantage of'
Diane Stretton says Marcella and Ralph Bracamonte exploited her.
5 Real Residences Used in Horror Movies, TV Shows
From the hotel that inspired "The Shining" to the "American Horror Story" house.
Buyers Are Dying to Live in Haunted Houses
Some buyers think it's cool to own a home where ghosts live.
Home Seller Nightmares: Bad Realtors, Teen Parties
Issues from realtors having sex in a client's bed to teens partying in mansions.
Get the Facts: Protect Your Child From Drowning
As summer approaches, follow these tips to keep your kids safe in the water.
The Agony of a Dad Whose Son Became a Mass Killer
Elliot Rodger's dad says he never saw a sign of violence in his son.
Santa Barbara Shooter's Father Writes 'We Have to Stop This'
Peter Rodger, Elliot Rodger's father, wrote the open letter exclusively for ABC.
Remembering the Santa Barbara Rampage Victims
The six young men and women who lost their lives on May 24.
Mental Illness in Kids: How to Spot the Signs
Know when and where to ask for help.
Inside Robin Roberts' Courageous Fight Against MDS
A personal and candid look at the "GMA" anchor's brave journey.
Resource Guide: Children in Foster Care
Find out more about child welfare organizations.
Former Navy SEAL's Guide to Surviving Almost Anything
Cade Courtley, a former Navy SEAL, on how to prepare yourself for disaster.
20 Ways to Cut Wedding Costs
The wedding industry is a $30 billion giant; don't pay more than you have to.
Butt Glue? 20 Beauty Secrets From Miss America Contestants
Beauty, fitness and eating tips from some of those vying for the 2013 tiara.
Billionaires' 20 Keys to Success
20 From '20/20': Principles That Made Tony Hsieh and Guy LaLiberte rich.
Vargas Is the Co-anchor of '20/20' on ABC News
Weekend Anchor, "World News with David Muir" Co-Anchor, "20/20"
Can't Wait in Line for a Cronut? Hire This Guy
Robert Samuel turned waiting in line into a booming business.
Disney Theme Parks Reimagining the Wait in Line
You could be waiting in a line at Disney World, and you wouldn't even know it.
Shocking Tweets from Skylar Neese's Killer After She Stabbed Her to Death
Sheila Eddy pleaded guilty to first-degree murder after stabbing her friend.
Malibu Community Roars Over Tigers as Neighbors
Two animal trainers never expected their neighborhood to turn against them.
Real-Life Thomas Crown Turns Life Around After Heist
Anthony Curcio served five years for what he thought was the perfect crime.
Watch: Line Rage: Why People Lose It Waiting in Line
People reimagine line-waiting, from turning it into a business to making it entertaining.
Watch: What Drove Man to Shoot, Kill Neighbor
While Upton was known for his philanthropy, Vilkin said Upton had a temper and yelled profanity at him.
Watch: State Senator Punches Fellow Senator in the Head
From brawls to meltdowns, political figures across the country are captured on camera losing it.
Watch: Man in Jail for Killing Neighbor: 'I Was Afraid of Him'
Guilty of murder, Michael Vilkin said he expected to act in self-defense when he shot John Upton.
Watch: Nasty Politician Brawls From Around the World
Hissing, punches, head locks - nothing seems off-limits for these overseas elected officials.
Watch: Family Friend of Teen Who Killed Friend Was in Disbelief
Kelly Kerns couldn't believe Rachel Shoaf killed Skyler Neese until reading about her guilt in the news.
Watch: Lifeguards In-Training: Can You Spot the Swimmer in Distress?
Lifeguarding expert RAC Carroll says it should take 10 seconds or less to spot someone in trouble.
Full Episode: 20/20 5/2: Donald Sterling's Confidante V.Stiviano Speaks Out
V. Stiviano speaks exclusively to Barbara Walters and 20/20.
Full Episode: 20/20 11/01: Stolen at Birth: A 20/20 Investigation
A Baby Is Stolen
Full Episode: 20/20 10/04: Out of Bounds
Girl Crush Becomes a Crime, Police Speeding, Alleged Kindergarten Fighting
Full Episode: 20/20 12/2: Overmedication in Foster Care
An investigation into the use of mind-altering drugs on foster children.
Photos: What Happened in Miami Hotel Attack?
Mystery of beaten cruise ship worker launches manhunt for her attacker.