Justin Prescott had just finished his evening performance in Motown The Musical and was leaving Broadway's Lunt-Fontanne Theatre when he learned of the grand jury's decision not to indict Officer Darren Wilson in the fatal shooting of Missouri teen Michael Brown. The 26-year-old performer soon joined hundreds of angry protesters marching against traffic up 7th Avenue. "The idea that the police, that law officers, are untouchable—it seems like it's been set up this way," said Prescott, who lives in Harlem. "Everyone else, we're just targets."

Protesters gathered in Union Square shortly before the decision was read at around 9 p.m., and took off on a meandering march through city streets that stopped briefly in Times Square (where NYPD Commissioner Bill Bratton was splattered with fake blood), before groups of several hundred demonstrators splintered in opposite directions. The Brooklyn Bridge and part of the Triborough Bridge were shut down during the march, but an NYPD spokesman said only one arrest was made, and that was in regards to the fake blood incident.

Update: Another arrest has been confirmed by the NYPD: Michael Steakin, 30, allegedly threw a bottle at an officer at East 125th Street near the entrance to the Triborough Bridge. Police say Steakin jumped over a fence, "attempted to interfere with police activity," shoved an officer and thew a bottle at a cop, hitting him in the head.

Steakin, who was injured during the arrest, is charged with assaulting a police officer, resisting arrest, and obstruction of governmental administration. One officer sustained a knee injury during the arrest; both the officer and Steakin were treated at St. Luke's Hospital and released. (Steakin was released in to police custody.)

None of the demonstrators we interviewed were surprised by the grand jury's decision.

"This is America. This is how they treat black people," said Maliaka McCorn as she walked up Frederick Douglas Boulevard. "They've done it before and they're doing it again, and they'll keep doing it until we do things like this and stand up for ourselves," McCorn added, referring to the slaying of unarmed black men at the hands of law enforcement. "I don't think protesting is changing the status quo, but it's letting people know that we're here, and we're not going anywhere."

We followed the march to Harlem, where at one point it consisted of roughly 400 people. NYPD squad cars and scooter cops led the way, blocking traffic to clear paths for the protesters, who had no obvious destination. Trucks and cabs honked their approval. Residents drew their curtains aside to take photographs or wave. One man leaned out his window and banged on a pot, drawing cheers from the crowd.

A 45-minute standoff ensued at around 12:45 a.m. after protesters occupied the deck of the Triborough Bridge and refused to leave, despite warnings from the NYPD. When it appeared that the police would kettle the demonstrators, Dominic Murray sat down and asked to borrow our pen and pad to write down phone numbers of people he'd need to call in jail.

"I've seen enough of this shit. This shit ain't right, we can't continue to let this happen," said Murray, who joined the march from his home off 118th Street near Lenox. "Cops killing unarmed men. This thing in Brooklyn that just happened on the steps—how long are we gonna tolerate this?"

Eventually, after another warning from the NYPD that protesters would be arrested if they did not leave "in five minutes," the crowd headed down the exit ramp back into Harlem, where it shrank. A group of young men swigging from bottles and blowing weed smoke within 20 feet of the NYPD took the lead. A bottle was thrown at a building. One man ran up on the hood of a dented van, laughing. Most of the crowd seemed unamused.

"If you're driving a beat-up car through Harlem at 1:30 a.m., you're probably not part of the problem," one protester muttered.

Joel Francois, a Brooklyn College student, described the protest as "inadequate," but "all we can do right now."

"That child, his body laid on the pavement in Ferguson, that child had parents," Francois said. "And if this march does nothing more than show the parents that there are people miles away that at least care enough to leave their homes and march throughout the entire city in the name of that child, that's as far as a victory as we'll get."

Al Sharpton's National Action Network is planning a "Hands Up for Justice" rally today at noon at Cadman Plaza in downtown Brooklyn.