The photo of a cop bringing milk to a family on lockdown during Friday's manhunt has gone viral. The viral photo was taken when the city of Boston was on lockdown waiting for authorities to capture the bombing suspect.

During the lockdown, the Wells family of Watertown, Massachusetts ran out of milk and an officer was kind enough to bring them some. The photo of officer John Bradley bringing two gallons of milk to the family has spread wildly on Facebook.

The Wells family has a 17-month-old son named Holden. Not knowing how long the lockdown would last, the family knew the child could not go without milk. Holden's visiting grandmother went outside and asked the cop if he would get the family some milk.

Not thinking he would actually do it, the family was surprised when officer Bradley returned to the house with two gallons of milk.

As the officer was walking back to the house, milk in hand, Kevin Wells (Holden's father) snapped a photo of the cop, which has gone viral.

Holden's mother McKenzie Wells told Today.com, "It just meant the world that he literally went out and got two gallons of milk. We wanted to pay him, but he wouldn't take money from us. He was just so generous."

When the couple posted the photo of the cop, they simply meant to say thank you. The Wells family did not think that so many people would see the photo.

Not wanting the officer to get mad or in trouble, the Wells' took the photo down for a while, but the Boston Police department's official Twitter account reposted the picture. The viral photo ended being shared 60,000 times by Sunday according to Today.com.

The cop in the photo, John Bradley, did not want to comment on the photo, but a police department spokesman told Today.com, "He was just happy to be able to help. He does not want to take credit from the many officers who were there doing their job."

On Friday night, police caught the bombing suspect Dzhokhar Tsarnaev four blocks from the Wells home. When the family heard the news they joined their community in celebrating.

McKenzie Wells told Today.com "It was just nerve-wracking. Being locked in your house is something you'll never think you'll experience.