A sniper who terrorised America during a three-week killing spree in 2002 has been was executed by lethal injection.
John Allen Muhammad, 48, and his teenage accomplice Lee Boyd Malvo, were behind a series of attacks that left 10 people dead in and around the Washington DC area.
Muhammad was pronounced dead at 9.11pm local time (2.11am Wednesday, GMT) at the Greenville Correctional Centre in Virginia.
It followed the failure of an 11th-hour appeal by his lawyers to commute the sentence to life imprisonment on the ground that the convicted murderer was severely mentally ill.
He made no final comment.