Poetic justice doesn’t feel right when the recipient is only a child. In an ironic twist that some would describe that way, a preteen girl facing murder charges in the killing of a 64-year-old disabled man found herself on the receiving end of violence when she was shot in Washington just four blocks from the scene of her alleged crime, WTTG-TV in D.C. reported Friday. The 12-year-old and two 13-year-old girls were arrested last week and charged with second-degree murder in the beating death of Reggie Brown in October. Brown, who was described by his family as a “kind, compassionate person who…