Justin Fletcher, best known as the beloved children's TV character Mr Tumble, is the victim of a cruel death hoax.The 53 year old TV star, who is known by almost every child in the country for his loveable character, is actually alive and well, despite cruel pranksters spreading the false claim online on Thursday. 'Mr Tumble Dead' started trending on social media and caused devastated fans to quickly express their sadness over the apparent death of the presenter - but it is not true.