Now Playing: Supreme Court Justice Ginsburg discharged from hospital after cancer surgery
Now Playing: Ginsburg recovering from cancer surgery
Now Playing: Man charged with killing father while he was camping with 2 daughters
Now Playing: Family of 5 killed by wrong-way driver in fiery car crash in Kentucky
Now Playing: Uber driver makes surprise guilty plea in Michigan killing spree
Now Playing: Lighthouse in Lake Michigan washed away by large waves
Now Playing: Ginsburg misses oral arguments for first time in 25 years
Now Playing: Cyntoia Brown granted clemency after serving 15 years in prison
Now Playing: Parolee charged in young dad’s death at campground
Now Playing: Bolton seems to contradict Trump on US withdrawal from Syria
Now Playing: 7-year-old’s fatal shooting a case of mistaken identity: Police
Now Playing: Kevin Spacey pleads not guilty to indecent assault and battery
Now Playing: Deadly shooting spree
Now Playing: Michigan town mourns family killed in crash
Now Playing: Inmates call 911 when officer collapses on road
Now Playing: Boy, 9, saves grandfather’s life
Now Playing: Woman sentenced to life for killing her alleged sex trafficker granted clemency
Now Playing: Suspect arrested in case of 7-year-old girl shot dead
Now Playing: Kevin Spacey pleads not guilty
Now Playing: Uber driver shooting spree suspect pleads guilty
Read More