Now Playing: International Space Station flies over Hurricane Irma, Hurricane Jose

Now Playing: 2nd crane collapses in Miami because of Hurricane Irma

Now Playing: Many families will be forced to rebuild as a result of the devastation of Hurricane Irma

Now Playing: How family separated during Hurricane Irma rode out storm

Now Playing: Thousands of Hurricane Irma evacuees hunker down in Florida

Now Playing: Storm chasers risk their lives to go inside the eye of Hurricane Irma

Now Playing: Miami copes with Hurricane Irma’s aftermath

Now Playing: Hurricane Irma continues to barrel up the west coast of Florida

Now Playing: Arizona college party ends with a deadly shooting: Part 1

Now Playing: Police body cameras capture aftermath of college party shooting: Part 2

Now Playing: What college student says happened night he killed fellow NAU student: Part 3

Now Playing: Shooting victims take stand at fellow student’s trial: Part 4

Now Playing: College student on trial for killing fellow student testifies: Part 5

Now Playing: Jury deadlocked in trial for shooting death of Arizona college student: Part 6

Now Playing: Rolling Stone ‘A Rape on Campus’ Reporter’s Deposition Tapes

Now Playing: Questions About ‘Jackie’s’ Story, Alleged Assault Ringleader: Part 4

Now Playing: Sexual Assault Survivor on Retracted ‘A Rape on Campus’ Article

Now Playing: Former UVA Dean Denies ‘Rape on Campus’ Article Allegations: Part 3

Now Playing: ‘Jackie’ Tells UVA Friends a Story That Will Change Their Lives: Part 1

Now Playing: Rolling Stone Publishes ‘A Rape on Campus’: Part 2