The protest was one of several demonstrations staged across San Diego County on Wednesday, each continuing the call for police reform and racial justice.
In La Mesa, leaders from across the county condemned recent rioting and looting, and implored residents to support the black community by writing letters to elected officials, demanding more public oversight and accountability of law enforcement agencies.
The series of demonstrations began with a protest in La Mesa on Saturday that devolved to looting and vandalism and a protest the day after in downtown San Diego that also resulted in destruction.
Harris was flanked by Francine Maxwell, president of San Diego's NAACP chapter; Donna DeBerry, CEO of the Central San Diego Black Chamber of Commerce; Al Abdallah, chief operating officer of the Urban League of San Diego County; and Apollo Olango.
The 59-year-old grandmother was hospitalized after being shot in the head with a beanbag round by a La Mesa police officer Saturday during a protest outside the city's police station.