For three weeks in October 2002, the greater Washington area was virtually paralyzed by a series of random sniper slayings. Ten people were killed and another three were seriously injured before John Allen Muhammad and Lee Boyd Malvo -- a minor at the time -- were caught sleeping in their car at a rest stop off Interstate 70 in Maryland. Muhammad was executed in Virginia in November 2009; Malvo was sentenced to six life sentences with no chance of parole. The pair was also tied to killings in Washington state, Georgia, Louisiana and Alabama.
Landmark U.S. manhunts
The law has tracked elusive criminals throughout history
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