It sounds to me like a nice (black) family had a party and invited some idiot THUGS who jumped a fence and went into a neighbors pool.
The neighbor called the cops and things escalated when officer dick-wad arrived.
There may have been a fight before the police arrived, but as soon as he did he was running back and forth like an idiot and escalating the situation. One of the other officers who were walking calmly should have called him and said STAY BEHIND US AND SHUT YOUR STUPID MOUTH AND WATCH AND LEARN.
I would not be surprised if he was a rookie
The officer in question is a Corporal and patrol supervisor.