By Andrew Holleran Legendary NFL reporter John Clayton died this week following a battle with a “brief illness,” his family confirmed. At this time, not much is known about Clayton’s illness, other than the fact that it was brief and he died peacefully. Clayton had recently been hospitalized. He last published a story for MyNorthwest.com a little more than a week ago, on March 10. Clayton passed on Friday night. Tributes for the legendary NFL reporter have been pouring in all weekend. Bonneville Seattle Senior Vice President and Market Manager Cathy Cangiano said in a statement: “John was a tr…