(Troutdale, OR)  --  Troutdale police say the student who killed another student and wounded a teacher at Reynolds High School was armed with an AR-15-type rifle and other weapons.  Authorities say 15-year-old freshman Jared Michael Padgett died of a self-inflicted gunshot wound Tuesday after killing 14-year-old Emilio Hoffman and wounding teacher Todd Rispler.  Investigators haven't released information on a motive for the shooting.  Police say the weapons with which Padgett was armed were obtained from his home after he defeated the devices that had them secured.