A man arrested following the discovery of nine dismembered bodies at his apartment used a Twitter account with the username "hangingpro," boasting knowledge about hanging, to get in touch with people who wanted to commit suicide, investigative sources said Thursday.Takahiro Shiraishi is believed to have opened the account in September with a profile saying he wanted "to spread my knowledge of hanging and be a help to those who are really in pain."Using the "hangingpro" handle, Shiraishi replied to women who had expressed suicidal feelings on Twitter with messages such as "Let's die together…READ FULL ARTICLE