premise: A shooting in Irvington has left one person dead on Monday night, according to the Essex County Prosecutor's Office. Essex County Chief Assistant Prosecutor Thomas Fennelly said his office is investigating a "shooting homicide" on 21st Street. The name of the victim has not been released and no other details were available as of 11 p.m. on Monday. Chris Sheldon may be reached at csheldon@njadvancemedia.com. Follow him on Twitter @chrisrsheldon Find NJ.com on Facebook.
hypothesis: Chris Sheldon's twitter is private. 
reason: we know he has a twitter, but we don't know if it is private or not. 