Buza was taken to a hospital where he was pronounced dead. The driver of the Sonata stayed at the scene. Alcohol does not appear to be a factor in the crash for the driver. Buza was killed only a couple blocks away from his home. His family said he died doing what he loved — biking. Buza was a retired aerospace engineer who worked for years at Lockheed Martin. Bicycle safety advocate and attorney Rachael Maney of Bike Law said the tragedy is a teachable moment for Fairfax County. “When we're looking at Washington regions within the Beltway, Fairfax County is the only one that hasn't made a definitive pledge to eradicate traffic fatalities," she said.