Witness: Officer in Floyd case gave onlookers a ‘cold’ stare

FILE - In this image from video provided by Darnella Frazier, Minneapolis Police Officer Derek Chauvin kneels on the neck of George Floyd in Minneapolis on Monday, May 25, 2020. The former Minneapolis police officer charged with killing Floyd went on trial Monday, March 29, 2021, with prosecutors showing the jury video of Chauvin pressing his knee on the Black man's neck for several minutes as onlookers yelled at him repeatedly to get off and Floyd gasped that he couldn't breathe. (Darnella Frazier via AP)

In this image from video, witness Donald Williams wipes his eyes as he answers questions, as Hennepin County Judge Peter Cahill presides Tuesday, March 30, 2021, in the trial of former Minneapolis police officer Derek Chauvin at the Hennepin County Courthouse in Minneapolis, Minn. Chauvin is charged in the May 25, 2020 death of George Floyd. (Court TV via AP, Pool)

In this image from video, defense attorney Eric Nelson, left, and former Minneapolis police officer Derek Chauvin, right, listen as Assistant Minnesota Attorney General Matthew Frank, questions witness Donald Williams, as Hennepin County Judge Peter Cahill presides Tuesday, March 30, 2021 at the Hennepin County Courthouse in Minneapolis, Minn. Chauvin is charged in the May 25, 2020 death of George Floyd. (Court TV via AP, Pool)

MINNEAPOLIS — As onlookers pleaded with Minneapolis police Officer Derek Chauvin to take his knee off George Floyd’s neck, Chauvin just gave them a “cold” and “heartless” stare, the teenager who shot the harrowing video of the arrest testified Tuesday at Chauvin’s murder trial.