1. The Eyeball Man

2. The Red Ripper

3. Aileen Wuornos

4.John Wayne Gacy, a real-life Pennywise clown

5. Rodney Alcala

6. Dennis Rader aka BTK

7. Mary Mallon

8. The Nithari Killers

9.  Shashikala Ramesh Patankar( Baby)