致20人死伤！美国发生校园枪击案，23岁枪手患抑郁症，“痴迷”杀害儿童，现场发现120个弹壳！特朗普下令降半旗

Core Points - A tragic shooting incident occurred in Minneapolis, resulting in the death of two children and injuries to 18 others, including 15 children [1][3] - The shooter, 23-year-old Robin Westman, legally purchased the firearms used in the attack and had a history of mental health issues, including depression and violent thoughts [5][3] - Local authorities and community leaders are calling for immediate gun reform to address gun violence and mental health issues in the country [5][7] Group 1 - The shooting took place on August 27, with the shooter using a rifle, shotgun, and handgun to fire into a school chapel, leading to significant casualties [1][3] - The police found 120 shell casings at the scene, indicating the severity of the attack [3] - The shooter expressed hatred towards various groups and admired past mass shooters, showcasing a disturbing mindset prior to the attack [5] Group 2 - Minneapolis Mayor Jacob Frey has urged for a ban on assault weapons and high-capacity magazines, emphasizing the need for legislative action beyond thoughts and prayers [5] - Victims' families are advocating for practical measures to combat gun violence and mental health issues, highlighting the emotional toll of such tragedies [5] - The White House ordered flags to be flown at half-staff in honor of the victims, reflecting the national impact of the incident [7]