Many held signs that read "Black Lives Matter" and "Blue Lies Matter" as they headed for the St. Paul Cathedral. The authorities made 18 arrests shortly after midnight on Friday after the protesters refused to disperse.
The jury of 12 deliberated on this one question: Did the officer have reason to fear that Castile was reaching for a gun that he had acknowledged having with him when he was pulled over by the officer?
The case got immediate national attention when Castile's girlfriend live-streamed the aftermath of the shooting on Facebook. That included several recent cases that ended in mistrials or acquittals when officers testified they feared for their lives, Stinson said.
As crowds swelled into the thousands, protesters began marching through the streets, toward St. Paul Cathedral. The 29-year-old officer has not been on active duty since the shooting last July.
"I'm mad as hell right now. But nevertheless the system continues to fail black people", she said.
"He made a frightful mistake", Choi said after the verdict, referring to the officer. Prosecutors argued that Yanez had overreacted and that Castile, a school cafeteria worker, was not a threat.
Officer Jeronimo Yanez, who is Latino, was acquitted Friday of manslaughter and two lesser charges.
The marchers then blocked the intersection of 39th Avenue Northeast and Silver Lake Road and paused to hear speakers including Castile's sister Allysza, who said, "we won't stop our fight for justice; I lost my brother, my father figure, I lost a piece of my heart".
Yanez approached Castile's auto on the driver's side.
Tropical system moving toward Gulf Coast
The two seasons during which these June storms formed were quite active and included some of the most infamous storms in history. Bret was located about 115 miles (190 km) east of Curacao, with maximum sustained winds of 40 miles per hour (65 km/h).
In the aftermath of protests in Minnesota following a police officer being found not guilty in the shooting death of Philando Castile, Sen.
There will be no justice for the death of Philando Castile.
"It was what I was expecting", she said.
John Choi, the Ramsey County prosecutor assigned to the case, told reporters following the verdict that Castile "did nothing that justified the taking of his life".
The protest was peaceful as darkness fell, but a smaller group splintered off and walked down an entrance ramp to block Interstate 94, quickly snarling traffic and leading to the freeway's shutdown in both directions.
Castile was shot with Reynolds and her 4-year-old daughter in the vehicle. She was praised for her split-second decision to stream the shooting's aftermath and her measured responses to Yanez, who had just fired shots into the vehicle and still had his gun out.
Outside the courthouse, Valerie Castile said her son followed the law. "God help America", Reynolds said in a statement Friday.
Rep. Cedric Richmond, a Democrat and Chairman of the Congressional Black Caucus, said the ruling gives African-Americans the impression that they can be shot by the Police without any repercussions.
"I think our officers acted really, really well and within the confines of what Chief Axtell has laid out and that's the approach we're going to take", Coleman said. Gray pointedly went after Reynolds on cross-examination, flustering her as he exposed many issues in statements she made.