Halloween night October 31 near 10:40 p.m. a Cockeysville resident fired from Greenside Drive block 10000 at three masked men who threatened him in his driveway, one with a handgun; they fled after he called 911. Police found Amon Walker, 20, dead nearby, two wounded adults at hospitals, and a loaded handgun believed theirs, reporting no ongoing threat and no charges or force decision yet. Maryland criminal law 4-203(b)(6) permits possessing a handgun on owned leased or residential property without a permit, with Second Amendment self-defense applying beyond the front door.