Now Playing: Chicago Police Superintendent Calling For 7 Officers to be Fired
Now Playing: Fla. sheriff: Uber driver’s fatal shooting of man ‘justifiable homicide’
Now Playing: Tractor-trailer crash in New Jersey
Now Playing: Seventeen people sickened in 4 states because of salmonella outbreak: CDC
Now Playing: An American classic by and American inventor: Lay’s potato chips
Now Playing: Tennis association apologizes in female player’s shirt flap
Now Playing: Officer facing murder charges in teen’s fatal shooting speaks out
Now Playing: Powerful storms move eastward, bringing soaking rains to heartland
Now Playing: GOP candidate uses ‘monkey it up’ discussing black opponent
Now Playing: Family and friends attend public viewing for Sen. John McCain
Now Playing: Surveillance video shows suspect in model murder
Now Playing: Homeless veteran sues couple who raised $400K to help him
Now Playing: Honoring an American hero
Now Playing: ‘GMA’ Hot List: Swarm of bees takes over a NYC hot dog cart
Now Playing: For seven months, murdered cats have been turning up in one Washington county
Now Playing: 3-year-old found dead in duffel bag in closet, mom arrested: Police
Now Playing: Former cop found guilty of murder
Now Playing: New study shows goats have a soft spot for positive human facial expressions
Now Playing: Headless torso found in fish tank inside missing man’s home
Now Playing: E-cigarette explodes inside man’s pocket
Read More