MOUNT VERNON, Wash. -- New outbursts in court Thursday, from the man accused of killing six people in Skagit County last month.

The mental stability of 28-year-old Isaac Zamora was again in question as he made several outbursts during his hearing. Zamora was supposed to be arraigned, but the judge decided to postpone the official hearing.

Less than a minute into the hearing, Zamora started interjecting, at one point saying he's guilty.

Zamora continued when he interrupted his own defense attorney, the prosecutor, and Superior Court Judge Michael Rickert.

"There's no request or no issue today,” the judge started. “YERHH, okay," interrupted Zamora.

When Judge Rickert addressed Zamora, the defendant called him a profane name, and then claimed the judge had misstated his birth date.

“What is your date of birth, Mr. Zamora?” the judge asked.

“Der der, der-der-der. 8-10-1980," Zamora said.

Zamora faces 20 charges in the deadly shooting and crime spree last month in Skagit County. The rampage left six people dead and five others injured.

Zamora grew impatient with the discussion in court as even as one point he said: "C'mon handsome, let's get going. Enough of this."

In his first court appearance, Zamora declared, "I kill for God. I listen to God."

His own mother told KIRO 7, right after the slayings that Zamora suffers from severe mental illness. His attorney said the same thing.

There isn't a defense attorney on staff in the Skagit County public defender's office that is recognized by the state as certified to defend a potential death penalty case. The county recently hired a chief deputy who is qualified, but he doesn't start work for another week or so. He will take on the case, when he arrives.

Zamora will go back to the jail and will be arraigned Oct. 23.

Skagit County Prosecutor Rich Weyrich will have 30 days after that arraignment to announce whether he'll seek the death penalty in this case.

Zamora's defense attorney said people should not put much stock in his defendant's claims of guilt, because of Zamora's mental illness.