Footage of the incident, which happened June 7 in the city’s Bronx borough, begins with the suspect approaching the victim from behind in broad daylight.
Video then appears to show the victim being dragged along the sidewalk before the suspect finally wrestles control of the backpack.
The victim suffered a cut to his right knee, according to Fox5 NY. The suspect, meanwhile, was last seen wearing shorts and a multicolored jacket.
The incident happened days before a 92-year-old woman was pushed to the ground in Manhattan in what appeared to be a random attack.
A registered sex offender who has been arrested 103 times was charged in that case.