(Cranston, RI) -- A former student at Cranston High School West is facing charges after sexually assaulting a teacher. Authorities say 18-year-old Adam Yidana entered the school as classes were being dismissed Friday, September 22nd. After speaking with his former Spanish teacher he went to give her a hug but inappropriately touched her. Yidana, a student at UMASS Dartmouth, was arraigned in a Massachusetts court and has waived extradition to Cranston.