Peter Cronkite, Grandson of Walter Cronkite, Dead at 22Jay Hathaway4/29/15 5:45pm20910EditPromoteDismissUndismissHideGo to permalinkPeter Cronkite, the 22-year-old grandson of the late, great TV newsman Walter Cronkite, was found dead in a dorm building at his college over the weekend. He took his own life.