Fan Casting Goodnight Dolls

A detective investigates the continuing murders of college girls. Who is the killer, the proffesor who gets too close to his students and is very eager to provide a psychological profile for the killer based on the case files? The photographer who coerces the female student body to pose for his "artsy" shoots for a chance to make it big? The sleazy club owner who potentially traffics drugs and prostitution, many of whom are made up of the formerly living female coeds? The jealous ex-boyfriend who felt scorned by his former significant others secret life?