Noah, who is South African and hosts "The Daily Show" on Comedy Central, made the remarks after a Minnesota police officer was acquitted of all charges over the fatal shooting of 32-year-old Philando Castile last July.
Dashcam video released earlier shows Mr Castile warning the police officer he has a gun.
Harrowing new video of what happened with Reynolds and her daughter in the hour following the shooting emerged Wednesday, when authorities released footage filmed from the rear-facing camera of the police auto under a public records request. That left plenty of room for reasonable doubt.
The New York Times also reported that prosecutor Jeffrey Paulsen said the dash cam video footage proved that Mr. Castile was "driving normally, pulled over quickly and was alert and courteous when talking to Officer Yanez".
NELSON: Yanez is a free man, although no longer employed as a police officer. The video was presented to a jury during Yanez's trial.
Yanez was charged with second-degree manslaughter, punishable by up to 10 years in prison, though sentencing guidelines suggest around four years is more likely.
"I, I'm reaching..." Castile said. The two men engaged in respectful conversation before Castile alerted Yanez about being armed with a license to carry.
"Right at the driver", Yanez said audibly choked up, "I had it right out, I had it pointed down".
In the harrowing moments after her boyfriend, Philando Castile, was shot during a routine traffic stop in Minnesota last summer, a distraught Diamond Reynolds begged Jesus to let him live as her frightened 4-year-old daughter encouraged her to stay calm so she wouldn't get shot too. The shooting gained widespread attention because Castile's girlfriend, Diamond Reynolds, livestreamed its gruesome aftermath on Facebook. Officers started giving Castile some form of medical attention after removing him from the vehicle around the 6:30 mark, slightly under five minutes after the last shot was sacked by Yanez.
In the video, Yanez was heard telling a supervisor that he didn't know where Castile's gun was, then saying that he told Castile to get his hand off it. Yanez testified, "What I meant by that was I didn't know where the gun was up until I saw it in his right thigh area".
"Because I know that the people are not protected by police", Reynolds said, according to NBC Minneapolis affiliate KARE.
"I can't believe they just did that", Reynolds whispers to herself - to which the girl begins to cry uncontrollably. Reynolds said he was trying to retrieve his wallet, which contained his driver's license and vehicle registration. "That's one thing", Noah said on "The Daily Show" Wednesday night.
The same poll found that 75 percent of whites believed police used the right amount of force for each situation compared with 33 percent of blacks, and that 70 percent of whites believed the law holds officers accountable when misconduct occurs compared with 31 percent of blacks.
The video and a transcript of an official interview with Yanez was released to the public Tuesday. While that impulse is understandable, federal prosecution of Yanez after his state acquittal would be inappropriate and risky to civil liberties.