The judge entered a plea of not guilty per a request from Crumbley’s attorney during an arraignment December 1.

Crumbley appeared via video from the Oakland County Jail on Monday, where he is currently being held. He wore a face mask and only spoke when asked to identify himself or when he acknowledged he understood his rights. The probable cause hearing in his case was postponed until January 7.

Prosecutors are still going through discovery, which includes about 500 pages of reports and witness statements they have shared with defense attorneys, said Assistant Prosecutor Marc Keast.

The January date could be delayed again if discovery is not complete, said Judge Nancy Carniak. A previously set court date for December 20 was canceled.

Father bought a gun prior to the shooting, prosecutor says

Ethan Crumbley shortly posted a picture of a gun on an Instagram account and captioned it, “Just got my new beauty today. SIG SAUER 9mm” with a heart-eyes emoji, McDonald said earlier this month.

Jennifer Crumbley also posted about the gun on social media, calling it “his new Christmas present,” McDonald continued. And his mother also took him to a shooting range the weekend before the shooting, according to a law enforcement.

When students returned from Thanksgiving break the day before the shooting — a Monday — a teacher saw Ethan Crumbley searching ammunition on his phone and reported it to school officials, the prosecutor said.

Later on Monday, Jennifer Crumbley sent Ethan a text message saying, “LOL I’m not mad at you. You have to learn not to get caught,” McDonald said.

The next day — the day of the shooting — another teacher found a drawing on Ethan Crumbley’s desk which essentially depicted a shooting, McDonald said. It “alarmed her to the point that she took a picture of it on her cell phone,” the prosecutor said.

The illustration showed a “semiautomatic handgun pointing at the words, ‘The thoughts won’t stop, help me,'” and it included a drawing of a bullet with the words “blood everywhere” written above it, McDonald said. The words “my life is useless” and “the world is dead” were also written on the drawing.

The distressing picture led school officials to hold a meeting with Ethan Crumbley and his parents, who were instructed to help provide counseling for their son within 48 hours, school officials have said.

The parents declined to take their son out of school that day, McDonald said, and he was allowed to return to the classroom.

Oxford Community Schools Superintendent Tim Throne said because the suspect had no prior disciplinary actions on his record, school counselors decided to allow him to return to class, rather than send him to what they thought would be an empty home.

Shooting at Oxford High spanned about 5 minutes, prosecutor says

Surveillance cameras at the school captured much of the violence, prosecutors have said.

Crumbley then allegedly began to “methodically and deliberately” walk the hallways, aiming a gun at students and firing the weapon, Keast said.

When students began to run away, Crumbley allegedly continued to go down the hallway at a “methodical pace” and shot inside classrooms and at students who hadn’t escaped, Keast said.

This continued for another four or five minutes, and Crumbley eventually went to another bathroom, Keast said.

Dozens of terrified students called 911. The call center received more than 100 calls as police raced to the school at 12:52 p.m. local time, Oakland County Sheriff Michael Bouchard said.

When deputies arrived, the suspect set down the gun and surrendered, officials have said.

Ethan Crumbley was initially being held at Oakland County Children’s Village, a juvenile detention facility. Because he was charged as an adult, he was transferred to the Oakland County Jail.

On Monday, attorneys for Crumbley asked that he be transferred from the jail back to the Children’s Village.

Deborah McKelvy, who was appointed the teen’s guardian ad litem, said Crumbley should be moved because he can hear adults, which violates the statute for minors being held in adult facilities.

The judge denied the request, and Keast said he will contact the facility personally to ensure Crumbley is not in sight or sound of adults at the jail.

James and Jennifer Crumbley arrested after manhunt

James and Jennifer Crumbley initially had an arraignment scheduled for December 3, but they failed to show up to court.

“They appeared to be hiding in the building,” Detroit Police Chief James White said during a news conference.

“Mr. Sikora fully cooperated and answered all of law enforcement’s questions. Mr. Sikora did not assist the Crumbleys in evading law enforcement, did not know there was a warrant for their arrest, and did not know they were at his art studio at the time of their arrest,” Dass said in a statement. “He has not been charged with any crime, and will continue to assist members of law enforcement in their pursuit of justice.”

Correction: An earlier version of this story incorrectly stated that a Monday court appearance by Ethan Crumbley was postponed. He appeared in court via video, but the hearing was postponed after prosecutors asked for more time to review evidence.