Now Playing: Young Amputee Rallies on the Field

Now Playing: Armless Girl Is a Swimming Inspiration

Now Playing: Students Lend a Hand to Get a Leg

Now Playing: Teen rescued after falling from amusement park ride

Now Playing: California residents use pool water to battle fire north of LA

Now Playing: Man who allegedly wanted to join ISIS arrested at JFK Airport

Now Playing: LAPD arrests officer accused of unlawful sex with teen

Now Playing: Stuffed cow toy saves boy's life

Now Playing: Flint airport attacker left officer with 12-inch gash on his neck: Hospital official

Now Playing: Emmy-winning TV journalist Gabe Pressman dies at 93

Now Playing: Mystery surrounds death of 14-year-old girl found in Texas landfill

Now Playing: Passengers evacuate JetBlue plane amid emergency

Now Playing: Fire ants cling to one another to form raft

Now Playing: Mistrial declared again for ex-cop Ray Tensing

Now Playing: Remnants of Tropical Storm Cindy level local liquor store and auto center

Now Playing: Good Samaritans free driver stuck in flooded car

Now Playing: Elijah Blake and Gina Belafonte on social activism in the digital age

Now Playing: Fighter jet involved in accident at Dayton International Airport

Now Playing: New video in Philando Castile case shows child begging mother to calm down after shooting

Now Playing: Video of police shooting of Philando Castile released