Astrological Findings for Gemini and Sagittarius
We'll only add induvial that have their ascendant, sun, moon or mercury in one of these two to avoid it being "just by chance" we also include Venus and mars if the individual has it in the first 4 first.

Disclaimer:
Just because you may share these placement does not mean you or the person you know will end up being a famous killer, Astrology symbolizes tendencies which can go either way its not deterministic.

Astrological Correlation the following killers/serial killers

Name: Ivan Milat
DOB: 27/Dec/1944
Birth Place: Sydney, Australia
Correlation: Mercury Sag, Mars Sag

Name: Ted Bundy
DOB: 24/Nov/1946 (10:35 PM)
Birth Place: Burlington, Vermont,
Correlation: Sun Sag, Moon Sag, Mars Sag
https://www.astro.com/astro-databank/Bundy,_Ted

Name: Jeffrey Dahmer
DOB: 21/May/1960(4:34 PM)
Birth Place: Milwaukee, Wisconsin,
Correlation: Sun Gemini, Mercury Gemini
https://www.astro.com/astro-databank/Dahmer,_Jeffrey

Name: Ramirez, Richard
DOB: 28/Feb/1960(02:07 AM )
Birth Place: El Paso, Texas
Correlation: Ascendant Sag
https://www.astro.com/astro-databank/Ramirez,_Richard

Name: Gacy, John Wayne
DOB: 17/Mar/1942 (12:29 AM  )
Birth Place:Chicago, Illinois
Correlation: Ascendant Sag, Mars In Gemini
https://www.astro.com/astro-databank/Gacy,_John_Wayne

Name: Richard Speck
DOB: 6/Dec/1941 (1:00 AM )
Birth Place:Kirkwood, Illinois
Correlation: Sun Sag, Mercury Sag, MC Gemini
https://www.astrotheme.com/astrology/Richard_Speck

Name:Harold Shipman
DOB: 14/Jan/1946
Birth Place: Nottingham, UK
Correlation: Moon Gemini,
https://www.astrotheme.com/astrology/Harold_Shipman

Name:Corll, Dean
DOB: 24/Dec/1939
Birth Place: Fort Wayne, Indiana
Correlation: Moon Gemini,Mecury Sag
https://www.astro.com/astro-databank/Corll,_Dean

Name:Samuel Little
DOB: 7/Jun/1940
Birth Place: Reynolds, GA,USA
Correlation: Sun Gemini
https://www.astrotheme.com/astrology/Samuel_Little

Name:Hatcher, Charles Ray
DOB: 16/July/1929
Birth Place: Mound City, USA
Correlation: Moon Sag, Rising Sag
https://www.astro.com/astro-databank/Hatcher,_Charles_Ray

Name:Belle Gunness
DOB: 11/Nov/1859
Birth Place: Selbu, Trondheim
Correlation: Mercury Sag
https://www.astro.com/astro-databank/Hatcher,_Charles_Ray

Name:Sutcliffe, Peter
DOB: 2/Jun/1946
Birth Place: Bingley, England,
Correlation: Sun Gemini, Mercury Gemini, Rising Sag
https://www.astro.com/astro-databank/Hatcher,_Charles_Ray

Name:Larry Eyler
DOB: 21/Dec/1952
Birth Place: Crawfordsville, Indiana
Correlation: Sun Sag, Mercury Sag
https://myastro.com/myastropedia/Larry-Eyler

Name:Richard Cottingham
DOB: 25/Nov/1946 (4:50 PM)
Birth Place: Bronx, New York
Correlation: Sun Sag, Moon Sag, Mars Sag, Gemini Rising
https://www.astro.com/astro-databank/Cottingham,_Richard

Name:Randy Kraft
DOB: 19/Mar/1945 (2:18 PM)
Birth Place: Long Beach, CA
Correlation:Moon Gemini
https://www.astrotheme.com/astrology/Randy_Kraft

Name:Marc Dutroux
DOB: 6/Nov/1956(7:35 AM)
Birth Place: Ixelles (Belgium)
Correlation:Moon Sag
https://www.astrotheme.com/astrology/Marc_Dutroux

Name:Marc Dutroux
DOB: 1/June/1956(4:52 PM)
Birth Place:Brooklyn, NY
Correlation: Sun Gemini, Mercury Gemini, Mars Gemini
https://www.astrotheme.com/astrology/Marc_Dutroux

Name:Ed Gein
DOB: 27/Aug/1906(11:30 PM)
Birth Place: North La Crosse (WI)
Correlation: Moon Sag, Gemini Rising,
https://www.astrotheme.com/astrology/Ed_Gein

Name:David Berkowitz
DOB: 1/Jun/1953 (4:52 PM)
Birth Place: Brooklyn (Kings County)
Correlation: Sun Gemini, Mercury Gemini, Mars Gemini
https://www.astrotheme.com/astrology/David_Berkowitz

Name:Dennis Nilsen
DOB: 23/Nov/1945(4:00 AM)
Birth Place:Fraserburgh (UK)
Correlation: Sun Sag, Mercury Sag,
https://www.astrotheme.com/astrology/Dennis_Nilsen

Name:Peter Sutcliffe
DOB: 2/Jun/1946(8:30 PM)
Birth Place: Bingley (UK)
Correlation: Sun Gemini, Sag Rising, Mercury Gemini
https://www.astrotheme.com/astrology/Peter_Sutcliffe

Name:Edmund Kemper
DOB: 8/Dec/1948 (11:04 PM)
Birth Place: Burbank (CA)
Correlation: Sun Sag, (strong mutable energy)
https://www.astrotheme.com/astrology/Edmund_Kemper

Name:Bianchi, Kenneth A.
DOB: 22/May/1951
Birth Place:Rochester, USA,
Correlation: Sun Gemini, Moon Sag
https://www.astro.com/astro-databank/Bianchi,_Kenneth_A.

Name: Luis Garavito
DOB: 25/Jan/1957
Birth Place: Génova, Quindío
Correlation: Moon Sag
https://www.astrotheme.com/astrology/Luis_Garavito

Name: Joseph C. Phillips
DOB: 17/Jan/1962
Birth Place: Denver (CO)
Correlation: Moon Gemini
https://www.astrotheme.com/astrology/Joseph_C._Phillips

Name: Dean Corll
DOB: 24/Dec/1939 (8:45 PM)
Birth Place: : Fort Wayne (IN)
Correlation: Moon Gemini, Mercury Sag
https://www.astrotheme.com/astrology/Dean_Corll

Name: Mikhail Popkov
DOB: 7/Mar/1964
Birth Place: :Angarsk, Irkutsk Oblast
Correlation: Moon Sag, (strong mutable)
https://www.astrotheme.com/astrology/Mikhail_Popkov

Name: Myra Hindley
DOB: 23/Jul/1942 (2:45 AM)
Birth Place: :Manchester(UK)
Correlation: Rising Gemini, Venus Gemini
https://www.astrotheme.com/astrology/Myra_Hindley

Name: Catherine Birnie
DOB: 23/May/1951
Birth Place: Perth, Australia
Correlation: Sun Gemini, Moon Sag
https://www.astro-seek.com/birth-chart/catherine-birnie-horoscope

Name: Catherine Birnie
DOB: 16/Feb/1951
Birth Place: Perth, Australia
Correlation: Moon Gemini (Strong Pisces mutable)
https://www.astro-seek.com/birth-chart/catherine-birnie-horoscope

Name: David Birnie
DOB: 16/Feb/1951
Birth Place: Perth, Australia
Correlation: Moon Gemini (Strong Pisces mutable)
https://www.astro-seek.com/birth-chart/david-birnie-horoscope

Name: Paula Denyer
DOB: 14/Apr/1972
Birth Place: Perth, Australia
Correlation: Mercury Gemini
https://myastro.com/myastropedia/paula-denyer

Name: Bevan Spencer von Einem
DOB: 29/May/1946
Birth Place: Perth, Australia
Correlation: Sun Gemini
https://www.ask-oracle.com/birth-chart/bevan-spencer-von-einem/

Name: Goode, Arthur
DOB: 28/March/1954
Birth Place: Washington,USA
Correlation: Mercury Gemini
https://www.astro.com/astro-databank/Goode,_Arthur

Name: Clifford Olson
DOB: 1/Jan/1940 (10:10 PM)
Birth Place: Vancouver, BC (Canada)
Correlation: Mercury Sag
https://www.astrotheme.com/astrology/Clifford_Olson

Name: Kenneth Ponte
DOB:6/Dec/1949 12:55 PM)
Birth Place: Massachusetts,USA
Correlation: Sun Sag, Moon Gemini, Mercury Sag
https://www.astro-seek.com/birth-chart/kenneth-ponte-horoscope

Name: Antony Costa
DOB:23/Jun/1981
Birth Place: London,UK
Correlation: Mercury Sag, Mars Sag
https://www.astrotheme.com/astrology/Antony_Costa

Name: Paddy Kelly
DOB: 5/Dec/1977
Birth Place: IE, Ireland
Correlation: Sun Sag, Venus Sag
https://www.astro-seek.com/birth-chart/paddy-kelly-horoscope

Name: Paddy Kelly
DOB: 5/Dec/1977
Birth Place: IE, Ireland
Correlation: Sun Sag, Venus Sag
https://www.astro-seek.com/birth-chart/paddy-kelly-horoscope

Name: Haigh, John George
DOB: 29/July/1909 (07:34 AM)
Birth Place: Stamford, England,
Correlation: Moon Sag,
https://www.astro-seek.com/birth-chart/paddy-kelly-horoscope

What We See Globally:


  • Gemini or Sagittarius: 25.5% had their Sun in these two signs.

  • Some individuals in this list share similar placement patterns, such as double Sagittarius (Bundy, Cottingham) or double Gemini (Dahmer, Sutcliffe, Berkowitz). Those with matching Sun, Moon, or Rising signs often displayed similar behaviors, including deception, mobility, dual lives, or impulsive violence.

  • Gemini shows up frequently in mutable air placements, especially Mercury and Sun, This is not selection bias either as this list has some of the biggest we know even Ivan Millat and Ted Bundy sharing Sag energy this makes it very specific then just us cherry picking as we don't have time for this

  • Mutable placements account for approximately 70% of serial killers based on publicly available data. This includes Gemini, Virgo, Sagittarius, and Pisces. For example, one of the most notorious serial killers, Aileen Wuornos, was a Pisces, We even got Ivan Millat and Ted Bundy both well-known killers that have Sag energy in their charts

  • From Ted Bundy, Ivan Milat, to Aileen Wuornos, mutable energy consistently appears in publicly available data. While there may be a few cases with no clear mutable placements, the pattern quickly returns, most of the top-known killers show strong influence from Gemini, Virgo, Sagittarius, or Pisces.



Key Dangerous Degrees in Astrology: (not fully based on our data but is common)


  • 0° and 29° (critical degrees) – Start and end points, can blow up violently if planets like Mars, Pluto, or Uranus are involved.

  • 15° of Fixed Signs (Taurus, Leo, Scorpio, Aquarius) – Called the “violent degree,” cranks up stubborn, aggressive, or destructive energy.

  • 22° (the “kill or be killed” degree) – Shows up in violent acts, mostly in Cardinal signs (Aries, Cancer, Libra, Capricorn).

  • 18° of Mutable Signs (Gemini, Virgo, Sagittarius, Pisces) – Malefic, linked to chaos, deception, and endings that can turn violent.

  • 9° and 19° – Degrees of intensity, spike emotions and actions, especially when Mars or Pluto are involved.



Having Sun, Moon, Mercury & Rising at a Gemini and Sag Degree
3, 15, 27 is Gemini
9, 21 is Sag

We mention once more just because you have any of these in your chart does not mean you or that person you know is gonna be a killer its important to know astrology shows tendencies and urges not actions, Your upbringing, culture and how you express your astrological energies matter too.
We are saying the tendencies are more common within these signs.

Finally its important not to look at the placements alone we've done this only to limit what we can show to avoid our data "being only by chance" or "selection bias" but here are some aspects that may make someone a serial killer to watch out for.


  • Mars square Pluto – Tension between aggression and obsession; can trigger violent outbursts.




  • Sun or Moon conjunct Pluto – Deep emotional intensity, controlling tendencies, and hidden darkness.




  • Mercury opposite Neptune – Deceptive thinking, manipulation, and a blurred sense of reality.




  • Mars trine Uranus – Sudden, explosive energy; unpredictable violent potential.



As someone who values scientific reasoning, it’s important to acknowledge that astrology does not cause behavior or act as the only law, Astrology is you at the spiritual level, we also have to take neuroscience and the upbringing into consideration, Astrology is a very big part of us but it does not control us.
For example yes a Cancer moon will have strong emotions but they can put those emotions to good or bad use its on them.

The pagans who developed the mathematical divinations and assigned sign names forming both astronomy and astrology never viewed it as deterministic. Astrology reflects tendencies in personality and the soul’s expression, Every aspect, placement, and sign carries potential tendencies, both constructive and destructive.

it functions like an energetic framework, offering patterns and possibilities which can be expressed positively or negatively.
Astrology is energy it is who you are spirituality but how you express that energy is on you.
Mutable signs are adaptable so it only makes sense this data holds up as they make the perfect mass killers.

Also its also not biology so the evidence we can find for it operates very different,
This data list shows any pasts tests apparently "done" on astrology were poorly done.