showed him the picture, he said that's the guy that lives just down from me. he said he never heard anything, saw anything unusual but said he was very quiet and did keep to himself, that you just never know what somebody's going through. >> thank you, sara. we'll get back to you if necessary. president obama angrily addressing the nation. this is his 15th such public statement since taking office. listen. >> there's been another mass shooting in america. this time in a community college in oregon. that means there are more american families, moms, dads, children, whose lives have been changed forever. that means there's another community stunned with grief and