Nation ‘Horrific act of violence’: Rochester, New York, grieves for 2 students killed in mass shooting that injured 14 others September 20, 2020 USA TODAY Network, Rochester Democrat and Chronicle Comments Off on ‘Horrific act of violence’: Rochester, New York, grieves for 2 students killed in mass shooting that injured 14 others The shooting that left 2 people dead and 14 others injured brought further tumult to a city already gripped by civil unrest and the COVID-19 pandemic.