The man who police say acknowledged shooting four youths on a New York City subway agreed yesterday to return there to stand trial, and a prosecutor said the suspect had indicated that his actions were premeditated.

"I believe he indicated . . . that he at no time felt threatened by the individuals," Assistant Attorney General Andrew Isaac told Judge Michael Sullivan during Bernhard Hugo Goetz's arraignment in Concord District Court. "There are indications of premeditation, but that word was not used by Mr. Goetz."

Thomas Barton, a guard at the jail where Goetz is being held, said the suspect was emotionally drained on Monday and was apologetic.

"His direct statement was, 'What happened had to be done, but I'm sorry it happened,' " Barton said.

Goetz, 37, appearing in a bulletproof vest, told Sullivan that, "I'm willing to go back." New York City detectives were expected to arrive to pick him up this morning.

As police led the handcuffed Goetz away from the courtroom a reporter asked if he had anything to say.

"Vultures," he said.

Asked if he meant the four youths in the subway, Goetz replied, "You," to the crowd of reporters.

He is wanted for the Dec. 22 shooting of four youths on a subway car in Manhattan. Witnesses said the youths -- three of them carrying filed screwdrivers -- asked him for $5 and that he drew a .38-cal. revolver, shot them and fled.

An arrest warrant issued Tuesday in New York City charged Goetz with four counts of attempted murder and one of criminal possession of a dangerous weapon.

Police said all four of the youths who were shot had arrest records. Officials said one has been released from the hospital; one of the others is paralyzed below the waist.