According to the Columbus Police department, the man being assaulted in the video is Demarco Anderson. He was accused by police of having fired a weapon at a nearby house. However, nothing he could've done justifies what happened to him once he was placed in handcuffs.  

As the video begins, one officer appears to have the man under control as he puts handcuffs on the soon-to-be victim. After the cuffs go on, that's when a second officer comes running up and stomps his face into the curb.

According to our source for the video, police were looking for Anderson for suspicion of firing a gun in the area. When they approached him, he ran.

After a brief foot chase, Anderson was tasered, fell to the ground, and then placed in handcuffs. The video begins after the tasering.

After the cop stomped on Anderson's face, he starts looking around. At that moment, the officers realize they were just recorded committing a crime.