>> reporter: this is what many of us do is what peter muller was doing here, he was taking a picture and three people nearby didn't like that for some reason. now, those three people could be facing misdemeanor battery charges. when a cab driver jumped a curve, peter muller went to see what happened. >> i wanted to go check it out. >> he was one of dozens taking pictures and veryo. he says a man began yelling at him. >> he said i should be concerned with the feelings of the victims. >> police responded and another incident is beginning. muller says he walked away from the woman, and returned. you can see a heated verbal argument. a man pulls the women back until muller said one last sentence before turning away, again. >> get his girlfriend out of my face. >> the man punched the back of his head. >> at what point does it become okay to attack someone for taking a photo? >> one woman continued to attack muller as he pinned the man to the ground. police arrived, the person taking this video went down stairs. >> i heard someone say i have a video. i'm like, thank you. >> he took this pi

>> reporter: this is what many of us do is what peter muller was doing here, he was taking a picture and three people nearby didn't like that for some reason. now, those three people could be facing misdemeanor battery charges. when a cab driver jumped a curve, peter muller went to see what happened. >> i wanted to go check it out. >> he was one of dozens taking pictures and veryo. he says a man began yelling at him. >> he said i should be concerned with the feelings of the victims. >> police responded and another incident is beginning. muller says he walked away from the woman, and returned. you can see a heated verbal argument. a man pulls the women back until muller said one last sentence before turning away, again. >> get his girlfriend out of my face. >> the man punched the back of his head. >> at what point does it become okay to attack someone for taking a photo? >> one woman continued to attack muller as he pinned the man to the ground. police arrived, the person taking this video went down stairs. >> i heard someone say i have a video. i'm like, thank you. >> he took this pi

. >> when a cab driver jumped the curb, peter muller went to see what happened. >> i was curious and i wanted to check it out. >> reporter: he was one of dozens of people taking pictures and video when he says a woman began yelling at him. >> she was saying i should be more concerned of the feelings of the victims. >> reporter: one of the victims, this shoe shine man who has a broken hip. >> as police responded to the crash another incident was just beginning. he nesinitially walked away fro the woman and two others and then returned. you can see a heated verbal argument. the man initially pulls the woman back until muller said one last sentence to get away. >> to get his [ bleep ] girlfriend out of my face. i'm still in shock about it. >> reporter: one of the women continued to kick muller even as he pinned the man to the ground. when police arrived the person taking this video went downstairs. >> i hear someone say i have a video and i was like thank you. >> reporter: san francisco police say they were cited for misdemeanor, battery and released. puller has scrapes on his arm. he's

. >> the cabdriver jumped the curve tuesday and peter muller went to see what happened. >> i was curious and i wanted to check it out. he was one. dozens of people taking pictures and video when a woman began yelling at him. >> she was saying i should be more concerned with the feelings of the victim. >> one of those victims, this shoe shine man, who has a broken hip. >> it could have been worse. >> as police responded to the crash, another incident was just gunning. muller said he initially walked away from the woman and two others and then returned. you can see a heated verbal argument. the man in the group initially pulls the where i am back until muller said one last sentence before turning away again. >> to get his [bleep] girlfriend out of my face. >> that's when the man punched the back of his head. >> i'm still in shock about it. at what point does it become okay for a man to take a photo? >> he pinned the man to the ground. when police arrived the person taking the video went downstairs. >> they said a man had a video, and i said oh, thank you. >> he took this picture of the thr

. >> when dthe cabdriver jumped the curve tuesday and peter muller went to see what happened. >> i wasus and i wanted to check it out. he was one of dozens of people taking pictures and video when a woman began yelling at him. >> she was saying i should be more concerned with the feelings of the victim. >> one of those victims, this shoe shine man, who has a broken hip. >> it could have been worse. >> as police responded to the crash, another incident was just beginning. muller said he initially walked away from the woman and two others and then returned. you can see a heated verbal argument. the man in the group initially pulls the woman back until muller said one last sentence before turning away again. >> to get his [bleep] girlfriend out of my face. >> that's when the man punched the back of his head. >> i'm still in shock about it. at what point does it become okay to attack someone for taking a photo? >> he pinned the man to the ground. when police arrived the person taking the video went downstairs. >> they said a man had a video, and i said oh, thank you. >> he took this pictur