UTICA — Naythen Aubain did not appear in Utica City Court as expected Wednesday morning after being arraigned Tuesday night on two counts of first-degree murder.

City Court Judge Christopher Giruzzi said the 29-year-old defendant was "unable to be produced" for the brief proceeding, which went ahead in his absence.

With a mental health exam pending, the case now is scheduled to return to court Monday, Feb. 11, officials said. Until then, he will continue to be held in Oneida County jail without bail.

Aubain is accused of killing his grandmother, 90-year-old Katerine Aubain, and their landlord, 87-year-old Jane Wentka. He had been "combative and uncooperative" during the booking process Tuesday, and law enforcement officials later confirmed that conduct extended to Wednesday morning while jail officials were assembling inmates to head to court appearances.

As the investigation into the double murder continues, court papers shed more light on what happened inside 1147 Tilden Ave. prior to the discovery of the first body Sunday.

The papers note the charges stem from actions that took place between Saturday, Jan. 5, and Sunday, Jan. 6. They also note that Naythen Aubain had admitted guilt "through his statements that he stabbed both females in the neck with a knife as well as his admission to the placement of the remains of Katerine Aubain and Jane Wentka."

Police previously said it was after Naythen Aubain crashed a vehicle Sunday and made comments alluding to harming someone that officers discovered the dismembered remains of Wentka, some in her residence and some nearby on Albany Street. A shallow grave containing the body of Katerine Aubain then was discovered in Clayville late Monday night.

Tuesday night, Naythen Aubain — barefoot and wearing a jail-issued spit-deflection mask for the protection of those around him — was surrounded by law enforcement while he was arraigned in centralized arraignment court in Oriskany. During that proceeding he admitted to killing and dismembering the two women.

He also made statements indicating that the killings were done "in the name of the Lord."

At that time, a mental health examination called a "730 examination" was ordered to determine whether he is fit to assist in his own defense. Those exams are conducted by multiple mental health professions.

A prosecutor explained Wednesday that the case won't move forward until the results of that exam are available. The Utica Police Department also is waiting for preliminary findings from the medical examiner's office, which were not available as of Wednesday afternoon.

By state sentencing guidelines, conviction of one count of first-degree murder carries a maximum sentence of life in prison without parole.

Contact reporter Jolene Cleaver at 315-792-4956 or follow her on Twitter (@OD_Cleaver).