Thomas Miller-El accepted a deal with prosecutors Wednesday that spares the 56-year-old from heading to death row for a second time but virtually assures he will never leave prison.

A judge sentenced Miller-El to life in prison after he pleaded guilty to capital murder and aggravated robbery in the killing of a hotel clerk. He waived his right to appeal in exchange for prosecutors not seeking the death penalty, reported Thursday.

The plea appeared to end a two decades-old saga in which Miller-El, who is black, had his original conviction tossed in 2005 by the high court on the grounds of racial discrimination in jury selection.

"The attitude currently in the DA's office is not conducive to the tone that existed back when Mr. Miller-El's case was tried," said Doug Parks, Miller-El's attorney.

The Supreme Court cited a manual, written in 1969 and used until at least 1980, that instructed prosecutors on how to exclude minorities from Texas juries. Supreme Court Justice David H. Souter called racial discrimination in Dallas County's jury selection process unquestionable.

Miller-El was sentenced to death row in 1986 by a 12-member jury that included one black. Prosecutors struck 10 of the 11 blacks eligible to serve.

Miller-El pleaded guilty to killing Holiday Inn clerk Douglas Walker during a robbery. Walker and co-worker Donald Ray Hall were bound, gagged and shot. Hall, who was paralyzed in the shooting, identified Miller-El as the triggerman.

The private hearing is expected to continue through Monday with no comments from any of the participants, both Landis and the US Anti-Doping Agency (USADA) having agreed to the closed-door session unlike last May's open US hearing.

Landis, 32, has denied wrongdoing and fought his positive test for steroid testosterone on July 20, 2006, but a USADA arbitration panel ruled 2-1 against him last September, resulting in a two-year ban through January 29, 2009.

The International Cycling Union stripped Landis of his 2006 crown after that verdict, awarding the title to Spain's Oscar Pereiro.

In a Manhattan law office, Landis will make much the same case as he did last year, attacking the credibility of the French laboratory which handled his doping samples, and hope the global panel sees matters differently.

The CAS appeal board includes David Williams of New Zealand, Paris attorney Jan Paulsson and New York lawyer David Rivkin.

Swiss-based CAS will announce its binding ruling from Lausanne after completion of the hearing and consideration of the evidence presented.

Landis tested positive for synthetic testosterone after the penultimate 17th stage of the 2006 race. He fell back in stage 16 but rallied in stage 17 to reclaim almost eight minutes on his way to a now-disgraced victory moment.

The USADA arbitration panel noted several areas in which the French lab's handling of the test sample was improper but said the carbon ratio isotope test that showed Landis testing positive outweighed those issues.

By a 7-2 vote, the court says the state may use a primary system that allows the top two vote-getters to advance to the general election, even if they are from the same party.

Washington never held a primary under the new system because of legal challenges.

Writing for the majority, Justice Clarence Thomas said that overturning Washington's plan would have been an "extraordinary and precipitous nullification of the will of the people."

In dissent, Justice Antonin Scalia said Washington's system would cause a political party to be associated with candidates who may not represent its views. Scalia was joined by Justice Anthony Kennedy.

Lawyers for the political parties said David Duke has identified himself as a Republican, despite GOP repudiation of his racial views, while perennial presidential candidate Lyndon LaRouche has called himself a Democrat, despite wide disagreement with Democratic leaders.

Under Washington's system, all candidates for a particular office may list their political party preference after their names.

The top-two plan was created after state voters approved a law in 2004 allowing them to pick their favorite candidate for each office. The top two vote-getters would advance to the November general election, even if they are from the same party.

The major parties challenged the law in federal court, asserting a First Amendment right to select their own nominees without outside interference.

A federal judge and the 9th U.S. Circuit Court of Appeals in San Francisco struck down the election plan.

Washington state Attorney General Rob McKenna argued there was no evidence that the parties would be harmed, since they can publicize through advertising and other means which candidates they support.

Tuesday's decision is the second of two this year on the rights of political parties. In New York, the justices said the state's method of electing trial judges, which gives party bosses effective control of the process, does not violate the Constitution.