The shooter who killed two Catholic school students and wounded more than a dozen children sitting in the pews of a Minneapolis church once attended the same school and had been a member of the church, the city's police chief said. Authorities were poring over videos, writings and the movements of the shooter but remained uncertain what motivated 23-year-old Robin Westman to open fire through stained-glass windows as children celebrated Mass on the first week of classes at the Annunciation Catholic School. MORE: https://www.wthr.com/article/news/nation-world/shooting-vigil-minneapolis-catholic-school/507-93488ee6-2448-4c14-8b19-f2430d4976bb