Now Playing: 20th horse in 2 months dies at California racetrack
Now Playing: Track cancels horse racing after 21st fatality
Now Playing: New details in case of missing mom
Now Playing: Races cancelled at California track after 21 horses die
Now Playing: College student killed by flying tires at highway rest stop
Now Playing: Senator says she was raped by Air Force officer
Now Playing: It’s Morning, America: Thursday, March 7, 2019
Now Playing: Homeless vet, woman in GoFundMe scam plead guilty
Now Playing: Celebrity chef gives up stake in his restaurants
Now Playing: Stranded driver explains how taco sauce saved his life
Now Playing: Ex-police officer charged with beating homeless man with baton
Now Playing: Jurors in first Texas murder-for-hire trial on why they refused to convict
Now Playing: Moments that proved these female Marvel heroes were no damsels in distress
Now Playing: Preparing a St. Patrick’s Day cake
Now Playing: Deadly tornado demolishes Alabama neighborhood
Now Playing: Alex Trebek announces he has stage 4 pancreatic cancer
Now Playing: Semi avoids slamming into pickup truck
Now Playing: R. Kelly in custody after failing to pay $161,000 in child support
Now Playing: Ire after police confront black man picking up trash outside his home
Now Playing: Alex Trebek encourages fans amid cancer news: ‘Keep the faith’
Read More