Why do most serial killers have above average intelligence?

His database has identified over 2,600 serial killers, which Aamodt defined as somebody who killed at least two people, in two separate instances, with a "cooling off" period in between. Mass killers, however ... A serial killer with average IQ is also the most likely to strangle or shoot their victims. read more

Thank people like Thomas Harris, who wrote about brilliant serial killers playing mind games, and real life cases like the Zodiac, a smart serial killer who actually did play mind games. read more

The average serial killer has an IQ 94.7. Although various tests measure IQ, a score of 90 to 110 is usually considered "average" intelligence. A serial killer with average IQ is also the most likely to strangle or shoot their victims. Serial killers who have used bombs show, on average, higher IQs, while those who used poison exhibited the lowest. read more

The average IQ for serial killers is around 93 which is below the national average of 100 in the UK and 98 in the US. There are some who notably have high IQ's such as Richard Ramirez, Ted Bundy and Ian Brady but these are the exception and not the norm. read more