Source: Chris Graythen / Getty This should sound all too familiar. Louisiana police officers shot and killed a Black man that was walking away from them. The details of the encounter are sketchy, but the use of lethal force by numerous cops against one lone Black man is once again highly questionable at best. That’s because shooting someone 11 times in the back is rarely anything but the peakest of overkill. Reports TMZ: The man was at a gas station in Lafayette, Louisiana when someone called police to report a disturbance. At least half a dozen police arrived, and according to the eyewitness –who shot the video — he appeared to be holding a knife. You hear cops order the man on the ground, but he continues to walk. The woman who shot the video says she saw police tase him, but he was stil...