Now Playing: Egypt's Anti-Government Demonstrations Turn Deadly

Now Playing: The Message of the Egyptian Protestors

Now Playing: Uprising in Egypt

Now Playing: Hosni Mubarak Exclusive

Now Playing: The New Vice President Speaks

Now Playing: An American in Egypt

Now Playing: Washington's Perspective

Now Playing: The Liberation Square

Now Playing: President Trump signs executive order he says will keep immigrant families together

Now Playing: Inside the business of Transylvania and the real-life Dracula's castle in Romania

Now Playing: Inside the real-life Dracula's castle in Romania

Now Playing: US immigration and child separation policy continues to spark backlash

Now Playing: Behind the scenes with the directors of the hit new Ruth Bader Ginsburg doc 'RBG'

Now Playing: What we know about immigrant children being separated from their parents

Now Playing: Why people are leaving their homes and journeying to cross the border to the US

Now Playing: How a single drop of blood and recovered memories led to a conviction in 2008 attack

Now Playing: Barstool Sports' female CEO shares her vision for the company and its brand

Now Playing: Former NFL cheerleaders are suing Houston Texans alleging harassment, unfair pay

Now Playing: New Bear Grylls challenge tests the art of survival of everyday people

Now Playing: Ex-wife of Arizona killing-spree suspect says she lived in fear for her life