Hours after Fox News Channel finally retracted a May 16 conspiracy theory story about the fatal shooting of DNC staffer Seth Rich in Washington DC last July, Fox News Channel primetime star Sean Hannity did an about face, and said “out of respect for the family's wishes, for now, I am not discussing this matter at this time.” The Rich family had demanded that Fox, and Hannity knock off with the conspiracy theory. This morning, Fox News yanked a report on its site about…