An Oakland Juneteenth gathering Wednesday night was marred with chaos and shootings during a massive celebration attended by 5,000 people. The city said 32 police personnel patrolled the event around Lake Merritt, which was largely peaceful until around 8:15 p.m., when an illegal car and motorbike sideshow unfolded nearby. Shortly after, a fight escalated to shots fired. Police said several people were struck by gunfire, but an exact number of victims remains unknown. It’s unclear if there was more than one gunman, and no arrests have been made in connection with the shooting. A local news tea…