OXFORD, Mich. (WWJ) -- Authorities say Ethan Crumbley, the 15-year-old boy charged in the deadly Oxford High School shooting on Tuesday, apparently made a video the night before the shooting in which he discussed killing students.
The revelation was made by Oakland County Sheriff’s Lt. Tim Willis during Crumbley’s arraignment Wednesday afternoon.
“Two separate videos recovered from Ethan’s cell phone, taken in a search warrant, depicted a video made by him the night before the incident wherein he talked about shooting and killing students the next day at Oxford High School," Willis said.
“Further, a journal was recovered from Ethan’s backpack also detailing his desire to shoot up a school, to include murdering students," Willis added.
Just minutes before that revelation was made in an Oakland County courtroom, Sheriff Mike Bouchard said during a news conference that Crumbley had multiple behavior-related meetings with school administrators in the days leading up to the shooting, including one just hours before the violence.
Bouchard said while he couldn’t discuss the specific details of those meetings, Crumbley was called in to talk with school administrators on Monday and again on Tuesday morning around 10 a.m. related to “concerning” behavior in the classroom.
Crumbley’s parents were also called in for the Tuesday morning meeting, less than three hours before he opened fire inside the school.
The Oakland County Sheriff’s Office was not made aware of the meetings prior to the shooting, Bouchard said. Citing the ongoing investigation, Bouchard said he could not reveal specific details about those meetings.
The 15-year-old sophomore was released back into the school after Tuesday morning's meeting and never left the school, authorities said. The sheriff's office is still investigating how he brought the gun into the school, but it was believed he either had it in a backpack or tucked in his waistband.

Willis said a preliminary review of social media accounts indicated that Crumbley had access to a firearm and practiced with a SIG Sauer handgun.
Authorities said on Tuesday night that Crumbley’s father had purchased the weapon used in the rampage last week.
Oakland County Prosecutor Karen McDonald said Wednesday her office is considering charges against both parents, but it was not clear what those possible charges may be.
Crumbley was arraigned on one count of terrorism causing death, four counts of first-degree murder, seven counts of assault with intent to murder and 12 counts of felony firearm. On behalf of the teen, his attorney pleaded not guilty to all charges.
He was ordered to be transferred to the Oakland County Jail and to be held without bond.
Three students -- 14-year-old Hana St. Juliana, 16-year-old Tate Myre and 17-year-old Madisyn Baldwin -- died after the shooting on Tuesday. A fourth student, 17-year-old Justin Shilling, died on Wednesday.
Bouchard said the incident highlights the importance for the public to report any concerning behavior to the sheriff's office or other local law enforcement agencies.
Any signs of disturbing or threatening behavior, or if someone is being bullied or is suicidal -- whether at a school, place of worship, business or elsewhere -- should be reported to authorities.
"If they see something that may cross into any of those realms, it needs to be shared so we can figure it out if it’s a threat and where to get help," Bouchard said.
Authorities have not yet revealed a possible motive for the violence, though Bouchard said so far there was no evidence that he was bullied.
"There's nothing that he could have faced that would warrant senseless, absolutely brutal violence on other kids," Bouchard said during Wednesday's news conference.
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