A man on the train spotted a male passenger - shirtless and shivering - and literally gave him the shirt off his back.
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Temperatures in Manhattan that night were near freezing.
VIDEO: Shirt off back raw video
It was clear the man needed help so the Good Samaritan gave him a hand, guiding the man's arms into the sleeves.
After the shirt was on, the Good Samaritan disappeared from the video, but then came back with a hat.
He put the hat on the man's head and walked away, expecting nothing in return.