According to the Detroit Free Press, Oakland County Prosecutor Karen McDonald charged the suspect, Ethan Crumbley, as an adult. The criminal complaint against Crumbley shows he faces one charge of terrorism causing death, four counts of first-degree murder, seven counts of assault with intent to murder, and 12 counts of possession of a firearm in the commission of a felony. Crumbley was transferred from Children’s Village to Oakland County Jail, where he is being held without bond.
McDonald said in her press conference that investigators found a "mountain of digital evidence," including video and social media that she believes will prove the shooting was premeditated.
The Sheriff’s Office said the suspect was "involved in a meeting over behavior issues" on both the day of the shooting and the day before. The suspect did not have any bullying issues on record or other incidents of concern, according to the Sheriff’s Office.
According to CNN, investigators reportedly found videos on Crumbley’s phone that allegedly showed him talking about wanting to kill students at his school.