(Troutdale, OR)  --  Troutdale police say the person who fired shots that killed a student and wounded a teacher at Reynolds High School was also a student.  The name of the shooter, who's believed to have killed himself, hasn't been released.  Fourteen-year-old Emilio Hoffman was killed in yesterday's shooting, which also wounded physical-education teacher Todd Rispler.  Troutdale Police Chief Scott Anderson says it was Rispler who managed to initiate the lockdown procedure at the school, which likely saved lives.