he has received an a grade from the national rifle association, preserved for politicians who portray particular enthusiasm for lax gun laws. the mayor of indianapolis summing up the feelings of the majority of the country. >> what we're left with this morning is grief. grief for the families of those killed, grief for the employees who have lost their coworkers, and grief for the many americano occur. reporter: this latest tragedy coming just weeks after mass shootings in atlanta, colorado, and south carolina, drawing further attention to what has been described as a deep-seated epidemic of gun violence. following a furious protest over shootings in the city of minneapolis, release in chicago are calling for calms well after their own deadly incident. the victim this time, an unarmed 13-year-old latino boy. id. toledo's death happened last month but bodycam footage of the incident has not been released. reporter: the video you are about to see is incredibly disturbing. it is 230 a.m. and an officer wearing a body camera arrives at a black and latino neighborhood in chicago. a police