OXFORD TOWNSHIP, Mich. (AP) — A fourth student, a 17-year-old boy, has died from wounds he suffered when a sophomore opened fire Tuesday at a Michigan high school.
Authorities identified the teen Wednesday as Justin Shilling.
Investigators were still trying to determine a motive for the shooting at Oxford High School north of Detroit.
During a court hearing Wednesday, Oakland County Sheriff’s Lt. Tim Willis said the suspect, Ethan Crumbley, recorded video night before the violence in which he discussed killing students.
Crumbley has been charged as an adult with murder, attempted murder and terrorism causing death.
Willis made the comments shortly before Crumbley was to be arraigned.
Law enforcement officials said they were searching the suspect’s cellphone, school video footage and social media posts.
The other victims included a 16-year-old boy who died in a deputy’s patrol car on the way to a hospital.
Seven people were wounded, some critically, including a 14-year-old girl who was placed on a ventilator after surgery.