brian web for cbs news. >>> now it is a frightening attack police are looking for a man who slashed a woman just waiting for a septa train. "eyewitness news" reporter justin finch joins us from septa's 13th street station with the very latest, on this church justin, good morning. >> reporter: good morning, yes. that is right first this guy punched that woman in the face and used that razor to slash her forearm. this happened at the margaret, orthodox station on wednesday morning around 9:30 a.m. this guy did getaway but police now want your help to find this dangerous man. >> we're looking for public's help in identifying that person from that piece of video. >> reporter: moments before a razor attack septa surveillance cams snapped this glimpse of the man now considered a suspect. the victim a 50 year-old woman who just paid her fare at margaret orthodox station around 9:30 wednesday morning. as she made her way in to the paid area septa police say at first the man began talking to her unprompted. that conversation turned into an argument and then. >> the man punched her she does not know that man had never seen him before, and she defended herself, for the ba