As has happened before in Florida, stand your ground" is being appropriately scrutinized in the aftermath of the shocking shooting death of Markeis McGlockton, an unarmed black man who was gunned down for trying to protect his family - including his young children - in a dispute over a handicapped parking space. The local sheriff concluded that shooter Michael Drejka pulled the trigger because he was in fear, and therefore stand your ground applied. According to this inexplicable interpretation of the law, Drejka needed to defend himself from a man who ... was backing away from the confrontation. Florida's stand your ground law emerged as an outgrowth of the traditional "castle doctrine," which allowed individuals to defend their home (or "castle") with whatever force was necessary. Somehow, that concept has been warped into a virtual get-out-of-jail-free card that is essentially a license to kill. Five members of Congress, including three U.S. senators, have called for the Department of Justice to investigate why stand-your-ground immunity was extended to a man carrying a concealed weapon who angrily approached a car ... and created a confrontation. Had McGlockton been the one to pull out a gun, there is no way stand your ground would have been extended to him, a man of color. The Journal of the American Medical Association has reported a significant increase in unlawful homicides since stand your ground was enacted in Florida in 2005.