Four suspects in last week's fatal shooting of an off-duty police officer were arraigned yesterday in D.C. Superior Court, where Judge George Revercomb ordered two of the defendants held without bond, and two on $100,000 bond.

Gregory E. Williams, 25, and Dion M. Wilson, 23, the two held without bond pending a preliminary hearing, had both been on conditional release for past crimes, a prosecutor told the court.Williams had been convicted of armed robbery and Wilson on drug charges, according to Assistant U.S. Attorney Michele Goldfarb.

Goldfarb told the court that the two other suspects, Calvin O. Gorham, 18, and Ricardo A. Roberts, 19, have made statements to police.

All four defendants have been charged with first-degree murder in connection with the death of D.C. Police Officer Bernis Carr, who was fatally shot in the head and chest during a robbery at Jimi's Lounge, 4801 Georgia Ave. Nw. last Thursday. Police would not say which suspect was believed to have fired the shots that killed Carr.

A fifth suspect, Joe Lyn Wright, 21, has yet to be arraigned because he is recovering from a bullet wound at Prince George's General Hospital.

Police said the arrests were the result of a massive manhunt, labeled "Operation Skyhook," that had employed a total of 45 officers between Thursday night, when the robbery and killing occurred, and Sunday morning when the first arrests were made.

Police have recovered a sawed-off shotgun and pistol, Goldfarb told the court, adding that the government has an "extremely strong case."

Wright was shot during last Thursday night's robbery, police said, and checked into the hospital later that night under an assumed name.

Judge Rivercomb appointed separate public defenders to represent each of the four defendants, whose families were with them in court yesterday.

A procession bearing Officer Carr's casket passed by the first district substation at 5th and E Streets SE yesterday morning where Carr had worked as a youth division officer. Carr will be buried in North Carolina.*