Now Playing: Manhunts underway in two separate cop killings
Now Playing: Masked gunman wanted in 2 Chicago killings
Now Playing: 4 accused in brutal 2016 slaying of 8 family members in Ohio
Now Playing: Family files lawsuit after bar security guard fatally shot by police
Now Playing: Teen surprises stepfather with name change for his birthday
Now Playing: Monica Lewinsky on affair with President Clinton: ‘I just felt terrible’
Now Playing: Man to serve up to 10 years in prison for shooting at black teen who was lost
Now Playing: 20 people injured after car crashes into Social Security office
Now Playing: Potential nor’easter brewing in the east
Now Playing: More than a quarter million displaced because of California fires
Now Playing: Pilot error blamed for fatal military plane crash that killed 9
Now Playing: How California wildfires are impacting air quality
Now Playing: The Briefing Room: Amazon’s new HQ2 locations, tensions rise over Georgia gov. race
Now Playing: Volunteers pitch in to rally support for animals displaced by Camp Fire
Now Playing: Opening statements begin in trial of Mexican drug lord ‘El Chapo’
Now Playing: California fires have caused unprecedented damage, left at least 44 dead
Now Playing: 70-year-old Pokemon Go fan plays the game on 15 phones attached to his bicycle
Now Playing: Arrests made in 2016 murders of 8 family members
Now Playing: ‘GMA’ Hot List: Michelle Obama on what she hopes resonates most from her new book
Now Playing: Car crashes into Social Security building in New Jersey, at least 2 seriously hurt
Read More