Mark Knoller CBS News Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Mark Knoller, a former White House correspondent for CBS News, has died. He was 73. CBS News announced Knoller died in Washington, D.C., and while a cause of death was not disclosed, he suffered from diabetes and had been in ill health.