McLEAN, Va. (AP) — A federal judge on Wednesday rejected an appeal from convicted sniper John Allen Muhammad, who was sentenced to death for masterminding a 2002 killing spree in the Washington, D.C., region that left 10 people dead.

Muhammad, now on death row in Virginia, claimed numerous errors at his 2003 trial. But U.S. District Judge Liam O'Grady in Alexandria, Va., rejected all of Muhammad's claims challenging his conviction and sentence.

The Virginia Supreme Court had already rejected Muhammad's appeal. O'Grady's order issued Wednesday lifts a stay of execution that had been in place while he considered the appeal.