The former BOCES teacher’s aide who brought a loaded gun to the Kaplan School in West Nyack last year has been sentenced to three years’ probation. 24 year-old Gillian Jeffords of Warwick had brought a handbag to the school, in which a black Ruger 9mm handgun was found with four loaded magazines and 14 rounds of hollow-point bullets. It is illegal in New York to have a gun on school property.