A student opened fire inside Michigan's Oxford High School on Tuesday, shooting eleven people.
Three students who were killed in the shooting were identified that same day as 17-year-old Madisyn Baldwin, 6-year-old Tate Myre, and 14-year-old Hana St. Juliana.
A fourth student, 17-year-old Justin Shilling, succumbed to his injuries on Wednesday.
Seven other students were hospitalized. Some of them remain in critical condition, including one 14-year-old girl who had to be placed on a ventilator.
Authorities identified the suspect on Wednesday. Read more below.