Now Playing: Some Not Laughing at Dad's Popular Crying Baby Blog

Now Playing: Workplace Stress: Is Economy Making Us Crazy?

Now Playing: Tennis Player's Temper Tantrum Caught on Tape

Now Playing: Men With Suitcase ID'd in NYC Bomb Probe: Officials

Now Playing: Protesters Gather After Black Man Shot and Killed by Police in California

Now Playing: Organ Donations From Drug Overdose Donors Save Lives

Now Playing: 3 Injured in SC School Shooting; Suspect in Custody

Now Playing: Amanda Knox: In a Minute

Now Playing: Behind the Scenes at the American History Museum

Now Playing: First Look at Starliner Capsule

Now Playing: TSA Dog Named After 9/11 Hero to Retire

Now Playing: Rival Football Teams Join Together for Memorable Touchdown

Now Playing: Hackers Still Targeting Election Systems, FBI Director Warns

Now Playing: Avon Lady Still Calling at Age 94

Now Playing: Happy Good Neighbor Day!

Now Playing: Girl Gets Drake-Themed Birthday Party

Now Playing: Watchdog Issues Warning About Certain Samsung Washing Machines

Now Playing: Authorities Search for Missing Mom After Son Found at Sea

Now Playing: New Details in Death of Marlins Star Jose Fernandez

Now Playing: Black Man Shot and Killed By Police in California, Sparking Protests