 According to eyewitness accounts, after stopping at a toll booth in the Hudson area of the Buenos Aires - La Plata Highway at between 0330 and 0345, Bueno's path was blocked by a white Chevrolet K5 Blazer four-wheel drive with tinted windows.In anger, Bueno started chasing the Blazer.He tried to pass it by closing onto it with the front of his SUV.