The image, with tens of thousands of Facebook shares and retweets, is of an officer from the Brookline Police Department, CBS Boston reports.
It's unclear who took the photograph, but it appears to be from inside the home where the officer delivered the milk.
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During the manhunt for Dzhokhar Tsarnaev and Boston's lockdown, a Watertown resident snapped a photo of a cop delivering milk to a family with young children.
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Manhunt for Boston marathon bombing suspects
Barbara Faherty waves an American flag and cheers on the police with her neighbors moments after the last of the two Boston Marathon bombing suspects was caught on Arsenal Street in Watertown, Massachusetts on April 19, 2013. Monday's Boston Marathon bombing left three dead and over170 injured. UPI/Matthew Healey
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