Now Playing: What America owes descendants of slavery

Now Playing: President Dwight D. Eisenhower memorial opens today in Washington, D.C.

Now Playing: Baby goats jump for joy at Oregon Zoo

Now Playing: Police and firefighters team up to rescue two tiny kittens from storm drain

Now Playing: ABC News Live Update: Brain surgery could curb opioid addiction

Now Playing: What are reparations?

Now Playing: How ‘urban renewal’ displaced thousands of Black people after WWII

Now Playing: Boat sinks as Hurricane Sally hits Florida

Now Playing: Rochester officials discussed delaying release of Daniel Prude footage

Now Playing: Hurricane Sally leaves destruction as a new threat develops in the Gulf

Now Playing: ABC News Live Update: Gulf Coast reels from Sally as the storm moves further inland

Now Playing: Alligator spotted after Hurricane Sally hits Alabama

Now Playing: Explosive allegations of coverup after fatal police encounter in Rochester

Now Playing: Trump calls CDC director 'confused' after vaccine mask contradictions

Now Playing: Attorney General calls COVID lockdown intrusion on civil liberties

Now Playing: Torrential rain, storm surge drowns homes

Now Playing: Hundreds rescued after Hurricane Sally strikes Gulf Coast

Now Playing: NBA star Lorenzen Wright’s ex-wife pens novel after his killing

Now Playing: This senior dog sanctuary is total paradise for older pups without homes