The Virginia State Police Bell 407 was conducting an observation flight near a demonstration in the streets of Charlottesville, Virginia, U.S., and was being repositioned to watch over a motorcade when it crashed to the ground, killing both the pilot and his passenger. The helicopter was destroyed.
Accident Investigation, Helicopter Safety, In-depth Feature
Loss of Control Cited in Crash of Police Helicopter in Virginia
The U.S. NTSB says the Virginia State Police pilot could not get his Bell 407 out of vortex ring state.