-
Now Playing: Murder Charges Follow Tragic Fire
-
Now Playing: Arson Lab Tests How Flashpoint Occurs
-
Now Playing: Key Arson Evidence Is Put to Test
-
Now Playing: When Arson Conviction Is Death Sentence
-
Now Playing: Hotel housekeepers use panic buttons to call for help: Part 4
-
Now Playing: What's next for these female workers who have spoken out: Part 6
-
Now Playing: Female delivery worker says former supervisor bullied her for years
-
Now Playing: Waitresses talk about on-the-job sexual harassment
-
Now Playing: Female truckers navigate male-dominated industry
-
Now Playing: What this bartender did when she was harassed at work
-
Now Playing: Hotel housekeeper on speaking out against sexual harassment
-
Now Playing: Why this domestic worker is speaking out about sexual harassment
-
Now Playing: How women are fighting for equality and fair treatment on construction sites
-
Now Playing: Restaurant uses color-coded system to help staff combat sexual harassment
-
Now Playing: Diane Sawyer Reporting 'My Reality: A Hidden America' airs tonight at 10/9c
-
Now Playing: Iran, Russia should not associate with mass murder of innocent people: Trump
-
Now Playing: US and allies launch attacks on Syria
-
Now Playing: Pentagon officials remark on strikes in Syria
-
Now Playing: Strikes will establish a strong deterrent of chemical weapons: Trump
-
Now Playing: Man who kidnapped woman in so-called 'Gone Girl' case finally caught: Part 4