The teen allegedly seen punching out an unsuspecting elderly man in a "knockout game" video that's gone viral will surrender Tuesday, his attorney has reportedly said.

NorthJersey.com reports attorney Harley Breite said Sunday he'd been retained by the 17-year-old suspect's family, and has reached out to Paterson police to arrange for the surrender. Breite said he'll need until Tuesday to prepare the teen for a "safe surrender," according to the report.

The teen plans to enter a not guilty plea on charges of aggravated assault and endangering an injured victim, Breite said, according to the report.

“It is unfair for anyone to draw a conclusion without knowing what precipitated the events caught on video,” it quotes Breite saying.

Paterson police announced this weekend they were charging two teens — a 16-year-old who turned himself in, and a 17-year-old who was still being sought — after investigating the video, which was posted to several social media sites.

Police have said the 17-year-old boy is seen in the video punching the man at the corner of Rosa Parks Boulevard and Van Houten Street on Dec. 7. Authorities say the 16-year-old recorded the incident; he turned himself in on Saturday afternoon.

Police have not released the names of the teens due to their ages.

"This shameless act of violence was thoroughly investigated and the tireless efforts by the detectives involved is commendable," Paterson Police Director Jerry Speziale said in a statement cited in multiple reports, before the announcement that the second teen planned to surrender. "The juvenile at large will continue to be sought with the same tenacity and will face swift and decisive justice for this senseless act of violence."

In the video, a young man approaches the apparent victim as others off-camera yell "don't hit him." The a young man says something to the person that cannot be heard.

The young man turns back to the camera, and another voice — allegedly that of the 16-year-old — tells him "knock him out." The teen on camera throws a punch at the victim, who falls flat, as an off-camera voice laughs heartily.

After many receiving many reports about the video, Police director Jerry Speziale said in a video posted on the Paterson Police Facebook page earlier this week that the incident was being "vetted out" as to where and when it occurred, and who created the video.

Police ask anyone with information about the incident to contact them at 973-321-1111.

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