>> you now have about 300 people here who aren't sure whether they want to leave or not. thousands of national guard added to the mix. police assembling equipment and forming the line. we just had armored show up you have the police here in bigger numbers. color sparking violence but on this night it was about gang colors as bloods and crips went at it. the police never moved. the community handles its business stepping up squashing the rogue gang bangers and enforcing the curfew. as we approach 10:00 it's moving in the right direction. the key, leadership. concerned citizens and all importantly elected leaders on the ground. ♪ we shall overcome ♪ >> reporter: baltimore representative elijah cummings and state senator pugh voices of reason people responding flanked by media they move from group to group until they're only left with reporters and calm streets.