Coronation Street star Charlie Lawson has been left heartbroken after his dog Rex died in his arms at the age of 13.The ITV soap star, who played the role of hot-headed Jim McDonald on the show until 2018, said a final goodbye to his chocolate Labrador who passed away on Monday morning.The 61 year old actor posted an emotional tweet to social media the following day in memory of his furry friend.The Northern Irishman, who has two other dogs, wrote: “My heart is busted.