Four years after a school resource officer was arrested for failing to confront the shooter during the Marjory Stoneman Douglas High School massacre, a jury has acquitted him on all charges. Scot Peterson was arrested in June 2019 on nearly a dozen criminal charges for taking cover instead of confronting the expelled high school student who gunned down 14 students and three staff members inside the high school’s 1200 building on February 14, 2018…