SAN FRANCISCO (KGO) -- A body cam video shows the moment Chicago police officers shot and killed an unarmed black man and the director of the FBI responded Friday night from San Francisco.FBI director James Comey was in San Francisco addressing the American Bar Association at the Moscone Center. Comey mentioned the police misconduct.Dashcams and body cams captured a dramatic police encounter in South Chicago, showing two officers firing at an 18-year-old car theft suspect in a stolen vehicle and then a third officer firing at him as he ran.Responding officers can be heard saying "they shot at us too, right?" as they curse at the 18-year-old suspect as he lay on the ground dying. That graphic encounter and other recent police shootings were addressed by Comey. He gave the keynote adress from Mosone Center."Each incident of real or perceived police misconduct, or attack on police, drives them further apart. This is a big, big problem for a whole lot of reasons and I think the only answer is to get up close to each other. It's hard to hit up close. We got to get up close and we show the true heart of law enforcement and the communities we serve and protect," Comey said.As far as bridging the growing chasm between police and communities of color, he suggests starting at the top."We have a crisis in the FBI today. Eighty-three percent of our agents are white," Comey said.He says that makes the FBI dangerously less effective as the nation changes. He says building a new culture requires changing who is recruited and trained as police and suspects clash on the streets of major cities.