The Air Force has confirmed a trainee died as a result of a flu outbreak at Lackland Air Force Base in San Antonio, according to Rep. Joaquin Castro (D-Texas). Keon McDaniel was in his sixth week of basic military training when he experienced a "medical emergency" June 12. He was taken to Brooke Army Medical Center and died there on June 16, the Air Force said. At the time, the service said his death was undergoing a medical review and did not name influenza as the cause. But Castro said Tuesday that McDaniel "died from the flu," which also has sickened nearly 300 service members. "This is a tragedy that could have been prevented were it not for the reckless actions of" Defense Secretary Pete Hegseth, Castro told reporters during a press conference at the U.S. Capitol.