>> reporter: the streets of baltimore, maryland didn't stay quiet saturday. a day of peaceful demonstrations erupted in violence. angry agitators destroyed several police cars, smashing in windows, slashing tires and making off with some of the contents. merchandise scattered on the floor of this 7-eleven, all evidence of looting. shards of shattered glass is all that remain of other downtown store fronts. despite llall of the violence - >> i'm very proud of the residents of baltimore taking pride in their city and making sure our city is safe and putting themselves before agitating individuals that were causing harm here. that was our residents, that is our city. >> we will fight for freddie gray! >> reporter: at least a dozen protesters were pulled from the crowd and taken away. >> i am, to a degree, disappointed. we work very hard to allow people to do the protests.