More than 20,000 people watched a member of the Air Force die Saturday night when he fell while rappelling from the top of the Alamodome.

Many caught the fall on camera, including Adrian Corey, who was watching the band with his parents and siblings before kickoff.

"Once I saw him come down fast, I like, I (did not) know what to think," Corey said in an exclusive interview with KSAT 12.