OAKLAND COUNTY, Mich. — Lawyers on Thursday revisited dark, violent evidence in a special hearing to decide whether school shooter Ethan Crumbley, 17, will be sentenced to life in prison without parole for carrying out the 2021 Oxford High School shooting.

In court Thursday morning, the first witness shared writings from Crumbley’s personal journal, in which he laid out his desires to kill his fellow students.

Prosecutors also showed video footage from the shooting, which had never before been seen publicly. Students who witnessed the massacre are also expected to testify.

The prosecution will try to convince the judge that the shooter deserves life in prison without the possibility of parole for his crimes. The victims’ families are expected to be in the courtroom.

The video and students’ testimony are part of Crumbley’s so-called Miller hearing, a mandatory proceeding during which the judge will decide whether a life without parole sentence is appropriate for the teenager, who murdered four students and injured six students and a teacher in the shooting at Oxford High School in Oxford Township, Michigan. The hearing is expected to last two or three days.

Investigators, lawyers give statements in court

Lt. Timothy Willis, the first witness to speak at the hearing, said a 22-page journal was found in a bathroom stall, apparently left behind by Crumbley before he emerged in a hallway at Oxford High School and began shooting.

“I want America to hear what I did,” Crumbley wrote. “I will cause the largest school shooting in the state. I wish to hear the screams of the children as I shoot them.”

Willis said Crumbley searched online for information about police emergency response times, prison sentences for teenagers and whether Michigan has the death penalty.

In her opening remarks, Oakland County prosecutor Karen McDonald said Crumbley was an “offender like no other,” meticulously planning the attack and willing to peacefully surrender to spend his life behind bars.