BRIGHTON BEACH - Investigators say a 65-year-old woman has died after she was shot by a man on a mountain bike this morning in Brighton Beach. Police say it happened just before noon near the intersection of Sea Breeze Avenue and West 2nd Street. They say the victim was walking on the sidewalk when the suspect rode up and shot her multiple times in the torso.The woman, whose identity has not yet been released, was taken to Coney Island Hospital, where she was later pronounced dead. Authorities say no arrests have been made yet and the investigation is ongoing.