Now Playing: The first lava flows from Kilauea reaching Pacific

Now Playing: Man accused of driving his own car through his own restaurant

Now Playing: 2 families outraged after incident with service dog on flight

Now Playing: Couple get married in torrential rain

Now Playing: Woman killed in mudslide in North Carolina

Now Playing: Trump to 'look into' whether campaign was 'infiltrated'

Now Playing: Foreign exchange student killed in school shooting mourned

Now Playing: Dangerous inmates escaped in South Carolina

Now Playing: Explosion rocking a chemical plant near Houston

Now Playing: Meghan Markle marries Prince Harry in a lavish spectacle at Windsor castle

Now Playing: More than 100 people killed in Cuban plane crash

Now Playing: New eruption from the summit of Kilauea puts dozens more homes in danger

Now Playing: Workers left dangling after scaffold collapse in Atlanta

Now Playing: The moments from the Royal wedding

Now Playing: Students wipe away tears as they return to Santa Fe High School

Now Playing: Alleged Santa Fe HS shooter charged with capital murder

Now Playing: Trump administration moves to ban funds to clinics that perform abortions

Now Playing: 2 commuter buses collide at entrance of NYC's Lincoln Tunnel

Now Playing: Students at site of deadly school shooting had participated in gun violence protest

Now Playing: Jetliner with more than 100 on board crashes during takeoff from Cuba