SEATTLE -- A teenage girl who was captured on video getting punched by a Seattle police officer after she intervened in his arrest of her friend was sentenced to community service on Wednesday. Angel Rosenthal pleaded guilty in King County Juvenile Court to fourth-degree assault and was placed on probation for one year and ordered to serve 80 hours of community service. She had previously pleaded not guilty to a charge of third-degree assault. Video of the June 14 incident in South Seattle went viral online and has been viewed millions of times. The episode began when Officer Ian Walsh spotted four young women jaywalking. Walsh asked the group to step over to his patrol car, but the women were being "verbally antagonistic toward the officer," according to officials. Police said a 19-year-old woman, identified as Marilyn Levias, was resisting when Walsh tried to place handcuffs on her. Officials said Rosenthal intervened and placed her hands on Walsh's arm, "causing the officer to believe she was attempting to physically affect the first subject's escape," police said. Walsh pushed Rosenthal, but she came back at him, police said. Walsh then punched her, police said. Rosenthal later met with Walsh and apologized for her behavior. Levias was sentenced in August to 24 hours of community service.