| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| serial killer that killed over 200 people | 0.94 | 0.5 | 6065 | 11 |
| serial killer that killed serial killers | 1.11 | 0.5 | 8247 | 76 |
| what serial killer killed the most people | 0.54 | 0.2 | 5703 | 76 |
| serial killer that killed the most victims | 1.67 | 0.9 | 5996 | 99 |
| the serial killer that killed the most | 1.52 | 0.2 | 5319 | 24 |
| most people killed by serial killer | 0.85 | 0.3 | 235 | 42 |
| serial killer that killed men | 0.07 | 0.9 | 7928 | 96 |
| most killed serial killer | 0.23 | 0.6 | 7001 | 51 |
| serial killer with most kills in history | 1.69 | 0.4 | 1401 | 29 |
| most serial killer kills | 1.85 | 0.2 | 9013 | 92 |
