Some of the youths yelled abuse at police and climbed onto the fence on Macquarie St, brandishing signs and yelling "f*** the police" at officers on the steps. Some of the teenagers were seen drinking alcohol, with the swelling crowd eventually blocking off two lanes of the street.
Douglas Martin, a 16-year-old who knew the shot boys, said the officers should be punished.
"You got a reason to hate the coppers, you know, when you're a young kid. But this crosses the line. [It's] straight-out racism," the angry teenager said. "I want them to get punished. Treat them the same as normal citizens. Just because they're coppers, that's just a ... uniform, that's just a name.
"Treat them the same as us.
"Why can't they get sent to jail for shooting someone?"
Police have defended the officers' action and promised a thorough, unbiased inquiry into the incident. But Raul Bassi from the ISJA said the practice of police investigating police had to stop.
"We can't be witnesses to this without any action," he said.
Greens MP David Shoebridge has called for an independent inquiry into the shooting and has referred the incident to the Police Integrity Commission.
Boxer Anthony Mundine said the shooting was "brutality at its best", and he and other protesters were looking for justice.
"There is no justification to open fire like that. Point-blank range, in a car, ready to be arrested, then furthermore, bash them," Mundine said.
"But there has been no ramifications, there's been no ramifications to themofficers.
"Questions have got to be answered."
Mundine said he knew the families of those shot on Saturday.
"I grew up with one of the boys' fathers," Mundine said.
"It broke my heart. It really broke my heart. Fighting for his life."
- AAP