it was over a speedbump??
-----
Va. homicide linked to road rage case
Tom Jackman
A neighborhood dispute over a new traffic speed hump that apparently led to a June fistfight allegedly led a Fairfax County man to invade his neighbor's home and shoot him to death Sunday night, Fairfax police said.
Stephen A. Carr, 48, lived in the 6800 block of Field Master Drive in the Burke area. He frequently expressed concern about traffic speeding through his quiet neighborhood, in part to cut through to the Fairfax County Parkway.
So Carr, working through County Supervisor Pat Herrity's office, had a speed bump installed almost in front of his house.
From -
http://voices.washingtonpost.com/crime-scene/