Federal authorities have unsealed indictments against two American citizens for their alleged roles in a security breach at Florida’s MacDill Air Force Base. Alen Zheng, 20, and his sister Ann Mary Zheng, 27, face substantial prison terms following an investigation into an explosive device discovered outside the strategic military installation earlier this month.
The case unfolded rapidly after base personnel identified a suspicious package on March 16th. According to U.S. Attorney Gregory Kehoe, investigators determined that Alen Zheng had actually planted the device six days prior on March 10th, subsequently placing a 911 call to alert authorities about the bomb. Following the threat, both siblings immediately sold their Mercedes-Benz SUV and fled to China aboard an international flight.
Forensic examination of the vehicle, despite thorough cleaning by the new owners, revealed critical evidence including residue from explosive materials. Simultaneously, search warrants executed at the Zheng family residence yielded additional components used in constructing explosive devices.
Ann Mary Zheng was apprehended upon her voluntary return to the United States several days after their departure. She now faces charges of witness tampering and acting as an accessory after the fact, carrying a potential 30-year incarceration. Her brother remains at large in China, where authorities are coordinating with international partners to secure his extradition. Alen Zheng faces 40 years imprisonment for attempted damage to government property and unlawful manufacture and possession of an explosive device.
Prosecutors emphasized that current evidence does not suggest involvement by the Chinese government or any foreign state actor. The investigation remains ongoing regarding potential motivations behind the alleged attack on MacDill Air Force Base, which houses the critical U.S. Central Command responsible for military operations across the Middle East, Central Asia, and South Asia.
In a related development, another individual was separately charged this week with making threatening communications to the base, though investigators confirm no connection between the two cases.