Kate Garraway was left heartbroken on Monday evening following the tragic death of a close friend.MORE: See inside Kate Garraway's fun family homeThe Good Morning Britain star took to Instagram to pay tribute to Pride of Britain founder and former editor of The Mirror, Peter Willis, after he passed away suddenly.The mother-of-two shared a photo of Peter on her social media page, alongside a lengthy message. VIDEO: Kate Garraway goes on first holiday without husband Derek DraperShe wrote: "I'm