Sound of the police

#4 and I were headed to get Sweet D from work from the downtown and while slowed on Everett St. we see 2 men explaining something to a police officer outside a building. Seemed like nothing at first. Next one of the men seems to be getting agitated about whatever was being talked about. One of the men just gave up or disappeared but from traffic and a few cars back it was hard to tell. The first man is steadily getting more angry judging from his arm gestures towards someone or something inside the building he was facing. The cop was there alone. As far as i could tell the cop tried to divert the mans attention towards him then he leads him away from watever was causing the situation and then a mini-van swoops up out of nowhere and 3 or 4 cops jump out and detain the man. Another 3 to 4 cop cars also roll in and they all proceed to get out to handle one man. I have no clue what was going on and the people in the cars in front and behind were all stopped watching it go down. There was another man across the street with his camera taking pics also. I was taking them from the car so they are blurry and tinted and somewhat out of focus.
(If anyone was there and knows what happened. holla.)