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: Baking in the Death Valley heat

Now Playing: Former nurse suspected of killing up to 60 children

Now Playing: Teen killed by bullet when LA County deputies fired at pit bull: Sheriff's office

Now Playing: Video shows fisherman's close encounter with shark

Now Playing: Lawsuit alleges that lifeguards took over 5 minutes to pull submerged swimmer from pool

Now Playing: 'Pizzagate' perpetrator records 'goodbye' video before firing shots at DC restaurant

Now Playing: Video of police shooting of Philando Castile released

Now Playing: Alleged road rage triggers massive crash in California