What's Causing Those Loud Explosions Across San Antonio?

Loud booms rattled neighborhoods across San Antonio this past weekend — setting off car alarms, shaking windows, and leaving residents with zero answers. Military bases haven't responded, SAPD says no calls came in, and the mystery is still very much unsolved. Watch the full story on ksat.com #SanAntonio #MysteryUnsolved #OnlyInSA #HomemadeFireworks #WTFWasThat