NY Man in Prison for Murdering Son Charged in Wife's Death
Karl Karlsen was convicted of murder for rigging a truck to fall on his son.
Can You Solve The Mystery of This Man's Death?
Use these clues from the crime scene and investigation.
What Caused This Man's Mysterious Death?
Greg Fleniken was found dead alone in his hotel room.
Airline Ticket Mix-Up Sends Maryland Man to Grenada, Not Granada, Spain
Grenada is nearly 4,000 miles away from Granada, Spain.
Girlfriend in Murder Love Triangle: Ex's Acts 'Sickening'
Erika Friman says she never thought Pedro Bravo was capable of murder.
How a College Love Triangle Ended in Death
Pedro Bravo was accused of killing his friend for dating his ex.
Why This Teen Can't Stop Eating: Life With Prader-Willi Syndrome
Every waking minute of Hannah Wilkinson’s day is filled with intense hunger.
Strange Condition Turns Men's Guts into Microbreweries
Auto-brewery syndrome made these men appear to be drunk without ever drinking.
The Dark Side of Taking the Perfect Selfie
One teenager almost lost his life over his selfie obsession.
Teens Don't Let Blindness Keep Them From Golf, Skateboard
Leber's Hereditary Optic Neuropathy affects one in 50,000, many male teens.
On the Quest for Silence: When Everyday Sounds Hurt
Having hyperacusis makes hearing everyday noises unbearable for Joyce and Ben.
Robin Williams Died in an Apparent Suicide by Hanging
The actor was found dead in his home with "superficial cuts" on his wrist.
Robin Williams' Kids: Why He Couldn't 'Find It In His Heart to Stay'?
The late actor's 3 children speak out after their father's death.
What's to Come of the Films Robin Williams Was Working On?
What happens to the sequel of "Mrs. Doubtfire"?
Atlantic City Vacationers Describe Being Roughed Up by Harrah's Security
Hotel guests file series of lawsuits against Harrah’s Resort over use of force.
Brain-Eating Amoeba Survivor Swims Again
Kali Hardig's one of three people in the United States to survive the infection.
NJ Police Reopen Decades-Old Missing Baby Cold Case
Melissa McGuinn was just a few months old when she vanished in 1988.
Hot Debate: Is It Ever OK to Leave Your Child in the Car?
Recent deaths of children left alone in hot cars re-ignites parenting debate.
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"
British Airways Loses Woman's Luggage in 'Travel Nightmare'
ABC News’ Siobhan O’Driscoll reports: Nora Low was among thousands of British Airway passengers flying out of London’s...
Skydiver Hits Ground at 30 MPH, Lives
A seasoned skydiver in Northern California was attempting a complex stunt after jumping from about 8,000 feet when both of...
Pooped Ex-Mayor Says Why He Tossed Dog Feces
Dennis Kneier was caught throwing a bag of dog poop onto a neighbor's walkway.
Anger Over Prison Release for Man Who Bulldozed Neighborhood
Barry Swegle damaged 4 houses, a truck and several power lines with a bulldozer.
Why Has This Man Been Honked at Over 5,000 Times?
Rick and Cindy Krlich told “20/20" their Ohio town turned against them.
Hand Rejuvenation for Better Engagement Ring Selfies
This woman got a cosmetic procedure on her hand to become more "selfie worthy."
When Your Daughter Can't Stop Eating
Mother describes what it's like raising a child with Prader-Willi syndrome.
A Day in NYC When Every Sound Is Painful
Living in New York City can be a challenge when everyday noises can cause pain.
Watch: Police Suspect Man Killed Son for Insurance Payout
Part 1: Police reopen the investigation into the death of Levi Karlsen, who was crushed by a pickup truck.
Watch: Was House Fire Death of Man's First Wife a Murder?
Part 2: Karl Karlsen's second wife Cindy Karlsen, who feared she would be his next target, helps police.
Watch: Family Hopes Man Will Be Charged for Killing First Wife
Part 3: Karl Karlsen is serving 15 years to life in prison for murdering his son Levi Karlsen.
Watch: Man Dies Alone Mysteriously in His Hotel Room
Act 1: Police found Greg Fleniken dead from what appears to be natural causes.
Watch: Investigators Gather the Evidence
Act 2: Det. Scott Apple and private investigator Ken Brennan zero in on the crime scene.
Watch: The Mystery Is Finally Solved
Act 3: Greg Fleniken's killer is finally brought to justice.
Watch: 'This Is What a Dead Man Sees': Lucky Skydiver Recalls Free-Fall
Craig Stapleton, a champion skydiver with 7,000 jumps under his belt, "helicoptered" down at 70 mph.
Watch: Man Drives Bulldozer Through Neighbor's House
In cell phone video given exclusively to "20/20," a neighborly feud gets out of hand.
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: Inside 'Love Triangle' Killer's Journal
Pedro Bravo was found guilty of killing a friend, who was dating his ex.
Photos: Remembering the Life and Career of Robin Williams
A photo tribute to the life of a comedy legend.