WASHINGTON (AP) — Attorneys for John Allen Muhammad, mastermind of the 2002 sniper attacks in the Washington, D.C., area that left 10 dead, asked the U.S. Supreme Court on Tuesday to stop his execution.The 48-year-old Muhammad is scheduled to die by injection on Nov. 10 at a Virginia prison. In court papers, his attorneys say the execution should be put off while the court considers whether his trial lawyer was ineffective. Muhammad is also suspected of fatal shootings in other states.