For 50 years, and more than 30 of them spent here at Channel 4 News, Jon Snow's life's work, his vocation, was to get to the truth of every story, to inform us all about how the world works for good, and bad.

Jon Snow is set to share his experience in a Channel 4 documentary

Former Channel 4 news presenter Jon Snow has revealed he has secretly been battling a dementia diagnosis for three years and wants to be a voice for those also diagnosed