"It was widely speculated that a single sniper, initially identified as a white man with assumed military experience, was using the Interstate 495 Capital Beltway for travel, possibly in a white van or truck. It was later learned that the rampage was perpetrated by John Allen Muhammad, and a minor, Lee Boyd Malvo, then aged 17 and originally from Jamaica, driving a blue 1990 Chevrolet Caprice sedan."
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http://en.wikipedia.org/wiki/Beltway_sniper_attacks
"It was widely speculated that a single sniper, initially identified as a white man with assumed military experience, was using the Interstate 495 Capital Beltway for travel, possibly in a white van or truck. It was later learned that the rampage was perpetrated by John Allen Muhammad, and a minor, Lee Boyd Malvo, then aged 17 and originally from Jamaica, driving a blue 1990 Chevrolet Caprice sedan."