Thank you for stating the obvious! Welcome to 1930’s Germany; Hitler, his Gestapo, and the Holocaust (OBayMeCare) included, IMO.
In case you didn't notice, the victim was probably Jewish, although the black perp was probably unaware of that. Nonetheless, the crime may well have been racially motivated, especially with all the unrest being fomented in black communities across the country in the wake of the Zimmerman verdict.
BTW, the St. Louis suburb in which the attack occurred, Jennings, MO, has a 90% black population (and a violent crime rate about three times the national average), so, unless the perp goes on to commit similar crimes, the police are probably correct when they say that chances of apprehending him are small. Unfortunately, there won't be any protest coming from Foxman's Anti-Defamation League.
The savage scum could use a taste of their own medicine. Such a thing would be an efficacious teaching device. Our feckless leader could always call it a “teachable moment”..