i think that while some of that may be true there is still deep rooted institutionalized racism in the US that goes beyond day to day interactions. one example of that is the prison industrial complex and the way in which people of color are much more likely to be incarcerated regardless of crime rates.
and i think that its true that people get killed everyday but there seems to be a reason why this boy was killed and had he been white it seems much less likely that he would have been killed for that reason.
this is from eve goldberg and linda evans work on the prison industrial complex
http://globalresearch.ca/articles/EVA110A.html:
"Here at home, the war on drugs has been a war on poor people. Particularly poor, urban, African-American men and women. It's well documented that police enforcement of the new, harsh drug laws have been focused on low- level dealers in communities of color. Arrests of African-Americans have been about five times higher than arrests of whites, although whites and African- Americans use drugs at about the same rate. And, African-Americans have been imprisoned in numbers even more disproportionate than their relative arrest rates. It is estimated that in 1994, on any given day, one out of every 128 U.S. adults was incarcerated, while one out of every 17 African-American adult males was incarcerated. "