James Holmes , the Colorado shooting suspect , has no social media presence . Psychologists say it could suggest isolation , resentment toward society . Comment: Others with the same name are being harassed on Facebook .
James Holmes , the Colorado shooting suspect , has no social media presence . Psychologists say it could suggest isolation , resentment toward society . 81 % of 18- to 29-year-olds are on social networking sites , Pew says . Others with the same name are being harassed on Facebook .