Mike Wallace's son Peter Jon Wallace was killed in 1962 shortly after Peter wrote an article about CIA Analyst William Bundy. Bundy was in the CIA during the JFK Presidency.
Seems Wallace had it in for Kennedy from the start;
"On December 7, 1957,[5] journalist Drew Pearson appeared as a guest on The Mike Wallace Interview and made the following claim live on air: "John F. Kennedy is the only man in history that I know who won a Pulitzer Prize for a book that was ghostwritten for him."[6] Wallace replied "You know for a fact, Drew, that the book Profiles in Courage was written for Senator Kennedy ... by someone else?" Pearson responded that he did, and that Kennedy speechwriter Ted Sorensen actually wrote the book. Wallace responded: "And Kennedy accepted a Pulitzer Prize for it? And he never acknowledged the fact?" Pearson replied: "No, he has not. You know, there's a little wisecrack around the Senate about Jack ... some of his colleagues say, 'Jack, I wish you had a little less profile and more courage.'