Fermin Gonzales IV, 17, was one of three students injured when a high school teacher accidentally fired an unauthorized gun during a public safety lesson at a school in California, according to local reports. Bolstering recent warnings about the dangers of giving guns to teachers-a proposal touted by the gun lobby as well as President Donald Trump and other Republicans following the deadly school shooting in Parkland, Florida last month-a high school teacher and reserve cop in California accidentally fired a weapon in his classroom this week, injuring three students, according to local reports .