A growing crowd of about 80 people gathered Wednesday night at the corner of Del Paso Boulevard and Arden Way in Old North Sacramento to protest the killing of Joseph Mann by Sacramento police in July and other officer-involved shootings of black men.

Police and surveillance videos were made public this week that showed Mann, who was mentally ill and armed with a knife, running from officers and yelling at them before two patrolmen killed him in a barrage of gunfire.

The Sacramento chapter of Black Lives Matter organized Wednesday night’s protest, which was rowdy but peaceful as of 8 p.m. with protesters waving signs at passing cars and chanting slogans such as “Whose streets? Our streets!”

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SHARE COPY LINK The family of Joseph Mann, shot by police officers on July 11, criticize the Sacramento Police Department during a press conference on Del Paso Blvd. on Wednesday, Sept. 21, 2016 in Sacramento, California.

SHARE COPY LINK "We need to start tackling these issues," says Mayor Kevin Johnson, after Sacramento City Council members viewed the footage released by police in closed session Tuesday night. During the public portion of the meeting, Mayor Kevin Johnson promised

SHARE COPY LINK The Sacramento Police Department Tuesday released dashcam video from patrol cars that pursued Joseph Mann on July 11, the day he was shot dead by two officers on Del Paso Boulevard in Sacramento.

SHARE COPY LINK The Sacramento Police Department Tuesday released dashcam video from patrol cars that pursued Joseph Mann on July 11, the day he was shot dead by two officers on Del Paso Boulevard in Sacramento.

SHARE COPY LINK The Sacramento Police Department Tuesday released dashcam video from patrol cars that pursued Joseph Mann on July 11, the day he was shot dead by two officers on Del Paso Boulevard in Sacramento.