Students attend a vigil at LakePoint Community Church in Oxford, Mich., Tuesday, Nov. 30, 2021. Authorities say a 15-year-old sophomore opened fire at Oxford High School, killing several students and wounding multiple other people, including a teacher. (AP Photo/Paul Sancya)

Oakland County Prosecutor Karen McDonald said she was reviewing information about the shooting, and expected to issue formal charges by the end the day of Wednesday. A decision had not been made on whether to charge the 15-year-old shooting suspect as a juvenile or an adult. The suspect has not spoken about the case with investigators, invoking his right to silence and right to council.