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David Goldman, AP
The Rev. Al Sharpton, center, observes a moment of prayer while visiting a makeshift memorial where Walter Scott was fatally shot by a white police officer after he fled a traffic stop, Sunday, April 12, 2015, in North Charleston, S.C. The officer, Michael Thomas Slager, has been fired and charged with murder. (AP Photo/David Goldman)

NORTH CHARLESTON, S.C. — The Rev. Al Sharpton called for unity during a vigil at the site where 50-year-old Walter Scott was fatally shot by a North Charleston police officer.

A small crowd assembled Sunday afternoon under cloudy skies in the grassy, fenced-in area to pray for Scott, his family and for justice.

Scott was shot after fleeing a traffic stop April 4. Then-officer Michael Slager initially said Scott was shot after a tussle over his stun gun, but witness video surfaced showing Scott being shot as he ran away. Slager was fired and has been charged with murder.

Other speakers at the vigil urged the crowd to attend an upcoming meeting at the South Carolina Capitol about a bill proposing body cameras for officers in the state.