First of all, it is essential to keep in mind that astrology is not a science. While many people believe in astrology and zodiac signs, there is no scientific basis for its claims. Thus, any suggestion that a specific zodiac sign may be more likely to produce serial killers is purely speculative.

With that said, some researchers have attempted to examine whether there is any correlation between zodiac signs and criminal behavior. However, these studies are often criticized for their lack of scientific rigor and small sample sizes. The results are also inconsistent, with some studies finding no correlation between zodiac signs and criminal behavior, while others suggest there may be some association.
When it comes to Geminis, they are often portrayed as being dual-natured or having two different personalities. However, there is no evidence to suggest that Geminis are more likely to become serial killers than people born under other signs. In fact, it is worth noting that the vast majority of people born under any sign, including Geminis, do not become serial killers.
When it comes to statistics, there have been some attempts to examine the zodiac signs of known serial killers. However, the results are again inconclusive. For example, a study conducted in the United Kingdom in the 1980s found that of 100 serial killers studied, the most common zodiac sign was Scorpio, followed by Pisces, Virgo, and Gemini. However, the sample size was small, and the results have not been replicated in larger studies.
Another study conducted in the United States in the 1990s found that of 300 serial killers studied, the most common zodiac sign was Aquarius, followed by Scorpio, Aries, and Pisces. Again, the sample size was relatively small, and the results have not been replicated in larger studies.
It is also worth noting that many serial killers are never caught or identified, making it difficult to determine their zodiac signs. Additionally, many serial killers have been found to suffer from mental illness, which may make it difficult to make any conclusions about their personality traits or behavior based on their zodiac sign.
In conclusion, while some studies have attempted to examine whether there is any correlation between zodiac signs and criminal behavior, the results are inconclusive and often criticized for their lack of scientific rigor. Therefore, it is not accurate to claim that Geminis or any other zodiac sign is more likely to become a serial killer. It is essential to remember that the vast majority of people born under any sign, including Geminis, do not become serial killers.