This summer, two high-profile killings of unarmed African-American males by local police, one in New York City and the other in Ferguson, Missouri, have made the issue of police accountability a national one. Often, stories about people killed by the police get reported in the local press, but they rarely pop up on the national media radar.Last month in New York City, 43-year-old Eric Garner, a family man with six kids and two grandchildren, was killed after police applied a chokehold on him in an effort to take Garner into custody for allegedly selling individual untaxed cigarettes.