The mother of seven who was shot twice in the head during a Wednesday night confrontation died at Lutheran Hospital yesterday. Victoria Rogucki, 36, stepped out of her apartment at the O'Dwyer Gardens House in Coney Island to intervene in a dispute between her 16-year-old daughter's older boyfriend (and his brother and friends) and her sons and gunfire broke out from both sides. The NY Post reports, "Isa Johnson, 29, of Bushwick, was nabbed yesterday for the slaying and charged with murder and weapons possession." Rogucki's 17-year-old son was arrested a day earlier for criminal possession of a weapon.