FBI Leadership & Accountability — 2026-03-26

FBI Indicts Siblings in IED Plot at MacDill Air Force Base; One Suspect Fled to China

A federal grand jury indicted Alen Zheng, 20, and Ann Mary Zheng, 27, for an IED planted near MacDill Air Force Base's visitor center on March 10 that went undiscovered for six days until an airman found it March 16. Alen Zheng allegedly called 911 after planting the device, stating a bomb was present but refusing to provide the exact location; investigators traced the call to a burner phone purchased at Best Buy and recovered IED components from his home. Both siblings fled to China on March 12; Ann Mary returned and was arrested at Detroit airport March 17, facing up to 30 years for allegedly destroying a vehicle to obstruct the investigation. Prosecutors stated there is no immediate evidence Alen Zheng was acting on behalf of the Chinese government or any foreign power.

Analysis
Three listed sources, Newsweek's independent reporting plus syndicated wire coverage carried by WRGA and WCHS-TV, corroborate the core facts and align with broader independent reporting from ABC News, Tampa Bay Times, Fox News, and WUSF, all drawing from the same federal indictment and FBI press conference. MacDill hosts CENTCOM directing Operation Epic Fury; a professional-grade IED that sat undetected for six days at the installation's visitor center raises force protection questions during active wartime operations. The primary suspect's flight to China will test Beijing's willingness to cooperate with U.S. law enforcement, though prosecutors have stressed no evidence of foreign government direction. That distinction will determine whether this tracks as domestic extremism or a potential state-nexus case.

3 sources