At times, Mr. Loughner seemed to be reaching out to fellow gamers for help and advice, albeit in a disturbing way. Sometimes they offered it, such as giving him pointers about job hunting. At other times, his postings seemed so outrageous that the gamers mocked or ignored him. The online postings, written using pseudonyms, were shared with the Journal by a person who had access to them. Two fellow gamers who participated in the online forums say the author was the accused gunman, and some of the postings discuss incidents from Mr. Loughner's life that others have corroborated.