Seventeen years ago, the Washington, D.C. metro area was terrorized for three weeks by sniper fire, which claimed the lives of 10 people and critically injured three others.
The culprits were John Allen Muhammad and Lee Boyd Malvo, who was 17 at the time of the attacks. Muhammad was executed on November 10, 2009, while Malvo was sentenced to six consecutive life sentences without the possibility of parole.
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