Andrew Graystone was all alone outside his local mosque but that did not matter to him. He wanted the Muslim people inside the temple to know that someone had their back.
When news of the Christchurch terror attack reached him in Manchester, UK, he felt compelled to act.
He stood outside the Madina mosque on Friday with a handwritten sign that said: "You are my friends. I will keep watch while you pray."
A picture of Graystone and his sign quickly went viral on social media.
He has told The Observer in the UK that the overwhelming reaction to his act shows "the power of choosing friendship over fear".