ROCKVILLE CENTRE, Long Island (WABC) -- A terrifying incident on Long Island has police looking for a possible stalker.Authorities say a 10-year-old girl was walking to her bus stop in Rockville Centre when she was approached by a man.The man tried to convince her to leave with him. When she refused the man showed a handgun and knife in his waistband.The suspect ran off.Police say the suspect has also been seen around Francis F. Wilson Elementary School.----------