-
Now Playing: High school student in good condition after graduation shooting: Police
-
Now Playing: Lawyer for Sante Fe High School shooting suspect speaks
-
Now Playing: Parents take 30-year-old son to court to get him to move out
-
Now Playing: Toxic cloud prompts warning in Hawaii volcano emergency
-
Now Playing: Olympian sues USA swimming over alleged sexual abuse cover-up
-
Now Playing: Manhunt underway after cop killed in line of duty
-
Now Playing: Schools face threats after deadly high school shooting
-
Now Playing: Scratch-and-sniff stamps are coming to a post office near you
-
Now Playing: New eruption from Kilauea in Hawaii
-
Now Playing: 'Start Here' podcast: Active-shooter scenarios on the rise
-
Now Playing: Texas school shooting survivors on what happened when alleged gunman opened fire
-
Now Playing: Lava flows into the ocean, causes toxic plumes
-
Now Playing: Blind, elderly horse rescued after falling into 8-foot well
-
Now Playing: DNA tests underway to confirm captured cougar attacked bikers
-
Now Playing: NYPD investigating chef in connection with 2 sexual assault allegations: Sources
-
Now Playing: Woman says she was stopped, questioned by Border Patrol after speaking Spanish
-
Now Playing: In Hawaii, 'laze' being created by steady flow of lava entering the ocean
-
Now Playing: Officer responding to call about suspicious vehicle killed: Police
-
Now Playing: Urgent manhunt for 2 escaped inmates charged with murder
-
Now Playing: Officials: Suspected Santa Fe school shooter was cornered in 4 minutes