KERRVILLE, Texas — A driver lost control during a Texas drag racing event on an airport runway and slammed into a crowd of spectators, killing two children and injuring eight other people, authorities said. A 6-year-old boy and an 8-year-old boy were killed in the crash Saturday afternoon at an event called “Airport Race Wars 2” at the Kerrville-Kerr County Airport, police said in a news release.