3 Infographic Files Hi RES png format Serial Killers Criminal LawThese were constructed on a infographic powerpoint template in the pptx file format. Then they were converted to. HI RES png format. You can display online, in the classroom, or hand out. Alternatively, you can post all three online and let the students download from home. There are 15 serial killers in all. They are: Rodney Alcala, David Berkowitz, Ted Bundy, Jeffrey Dahmer, John Wayne Gacy, Hillside Strangler, H.H. Holmes, Ted