OAKTON, VA — Two adults were killed and two children were injured after a single-vehicle crash in Oakton over the weekend, and investigators say speed played a major role. Fairfax County police said data from the vehicle showed the Mercedes was traveling 116 mph as recently as five seconds before impact.
The crash happened just after midnight Sunday after a 30-year-old woman driving a Mercedes GLA 250 east on the I-66 Express Lanes took an exit ramp to Chain Bridge Road and continued into the intersection before hitting a median and then a barrier.
How the crash unfolded
Police said the vehicle struck the median and then slammed “very violently” into the barrier on the far side of Chain Bridge Road. Chief Kevin Davis said speed was “an absolute factor,” based on information recovered after the fatal wreck.
The car carried four people, including the driver, a front-seat passenger and two children. Authorities said only one of the children was restrained when the crash happened.
Who was killed and hurt
The driver was pronounced dead at the scene and later identified as Xiomara Herrera of Falls Church. The front-seat passenger, Alejandro Rodriguez Castillo, 27, of Sterling, died at a hospital…