I was scrolling TikTok the other day when I stumbled on a video about serial killers and their zodiac signs. I’ve been into astrology for over a decade, but I’d never really thought about it from that angle. The video pointed out something curious: a lot of them were Pisces, Geminis, or Virgos.
All three are mutable signs—flexible, adaptable, changeable—and they all carry a theme of duality. Gemini’s the twins, Pisces the two fish, and Virgo (though symbolized by the virgin) is ruled by Mercury, the planet of double meanings and trickster energy.
Now, I don’t actually believe your Sun sign makes you a killer (that’s not how astrology works), and I took the video more as a joke. But still, I couldn’t resist poking around to see if any patterns really do repeat.
Notable Serial Killers & Their Zodiac Signs
Yes, it’s interesting to look at the zodiac signs of serial killers, but let’s be real… your Sun sign alone doesn’t make you violent. Unless it’s tangled up with harsh aspects from Saturn, Pluto, or Mars, the sign itself says nothing about crime. At most, it shows patterns or coincidences, not causes.
Take Jeffrey Dahmer, for example. Yes, he was a Gemini, but what really stands out is his Sun at 0° (a critical degree), along with his Moon and Mars in fiery Aries. That paints a much stronger picture than just “Gemini = killer.” On top of that, his Sun, Mercury, and Venus were all in the 8th house, squared by Pluto, the house ruler, adding even more intensity and shadow. His Gemini Sun at 0° could also hint at questions around sexuality, since critical degrees in Gemini or Pisces are sometimes linked to themes of homosexuality or fluidity.
Aileen Wuornos is another case. Her Sun was in Pisces, but what really shaped her story were the heavy tensions between her Venus, Moon, and Neptune, far more complex than just “Pisces = gentle.” On top of that, Pisces Suns often end up with Venus in Aries, and for women especially, this placement can bring strong themes of sexual tension, impulsivity, or even aggression, no matter how “soft” a Pisces Sun might seem on the surface.
So yes, the Sun can add flavor, but the deeper chart is where the real picture lies.
Gemini Serial Killers
- Jeffrey Dahmer
- David Berkowitz
- Elizabeth Wettlaufer
- Peter Sutcliffe
Sagittarius Serial Killers
- Ted Bundy:
- Richard Cottingham
- Gary Heydnik
- Raymond Fernandez
Virgo Serial Killers
- Rodney Alcala (Dating game killer)
- Ed Gein (The Butcher of Plainfield)
- Richard Angelo
- Harrison Graham
Scorpio Serial Killers
- Charles Manson
- Joseph DeAngelo
- Belle Gunness
- Robert Pickton
Pisces Serial Killers
- John Wayne Gacy
- Aileen Wuornos
- Dennis Rader (BTK Killer)
- Richard Ramirez
The Motive of Each Zodiac Sign
- Aries – Impulsive rage. They act first, think later—killing in the heat of the moment.
- Taurus – Possessiveness or jealousy. Someone threatens their security, values, or “what’s mine,” and they snap.
- Gemini – Overthinking spirals. They obsess, analyze, and eventually talk themselves into the act.
- Cancer – Family first. They kill to protect (or avenge) loved ones, real or imagined.
- Leo – Ego and pride. An insult, humiliation, or betrayal wounds their sense of self, and they explode dramatically.
- Virgo – Control freak tendencies. Perfectionism twisted—killing to “fix” a problem or eliminate flaws.
- Libra – Relationship drama. Obsession with love, betrayal, or rejection pushes them into dark extremes.
- Scorpio – Revenge or obsession. They kill out of passion, control, or a need to settle the score once and for all.
- Sagittarius – Belief-driven. Religion, philosophy, or ideology becomes their justification.
- Capricorn – Power and status. They kill to maintain control, reputation, or authority.
- Aquarius – Detached ideology. A “grand plan” or cold logic fuels them, killing for a cause, not a feeling.
- Pisces – Fantasy turned real. They lose themselves in illusions, dreams, or emotions until dark desires spill into reality.
Aspects That Make Someone A Serial Killer
Instead of judging people by their Sun sign (which is honestly pointless—your Sun is maybe 1% of your chart), we have to look at the bigger picture and notice repeating patterns.
Here are some aspects I’ve seen show up a lot in serial killers’ charts:
- Aries placements, especially Venus, Mars, or the Moon
- Pluto squaring or opposing the Sun/Moon
- Saturn squaring or opposing the Sun/Moon
- South Node conjunct Pluto or Mars
- Neptune conjunct Venus/Mars
- Unaspected Mars/Venus in the 8th house
- Cancer/Scorpio stelliums squared or opposed by Jupiter
- Lilith conjunct Moon/Mars
And there are a few more aspects that can add to this kind of dark, destructive energy.
Algol-Moon Conjunction
Algol, the infamous “Demon Star” in Perseus, is actually a binary system that flickers in the sky—adding to its eerie reputation. In astrology, it’s tied to themes like violence, loss, and overwhelming emotions, echoing the myth of Perseus beheading Medusa.
When Algol is conjunct the Moon, emotions can become extreme and volatile. This aspect is often linked to explosive outbursts, maternal trauma, or deep-seated anger that can spiral into instability or even destructive, misogynistic tendencies.
Afflictions To Mars
Mars rules aggression, raw drive, and action. When it’s in a hard aspect (square or opposition) to planets like Saturn, Pluto, or the Moon, that energy can turn volatile.
- Mars–Saturn: constant frustration, like hitting a wall until the pressure explodes into rage.
- Mars–Pluto: buried anger, obsession with control, destructive or cruel outbursts.
- Mars–Moon: emotions fused with aggression—moods swing fast, feelings trigger anger, and impulses spiral out of control.
These aspects don’t guarantee violence, but they do point to intense inner battles that can easily boil over.
Pluto Aspects
Pluto is intensity itself—power, control, transformation, and the shadow side of life. When it strongly aspects personal planets (Sun, Moon, Mars, Venus), it can point to struggles with dominance, obsession, or destructive patterns.
But Pluto isn’t just “bad.” Its energy pushes us to confront and transform what’s hidden, shining a harsh light on the places that need deep healing and growth.
Saturn-Moon Aspects
When Saturn and the Moon clash (square or opposition), emotions can feel frozen. Expressing feelings becomes difficult, leading to a reserved or detached vibe. But beneath that calm surface, old wounds and unresolved baggage often simmer. Without healthy outlets, this tension can show up as emotional shutdowns—or sudden explosive outbursts.
Stelliums or Strong Emphasis In Scorpio/8th House
Scorpio energy is all about intensity, transformation, and deep emotion. Ruled by Mars (traditionally) and Pluto (modern), Scorpios are magnetic and drawn to life’s shadows—death, the afterlife, hidden motives, and all things taboo. With strong Scorpio or 8th-house placements, people tend to crave what lies beneath the surface.
That depth is their greatest strength, giving them insight and power. But it can also drag them into darker territory if unchecked. At their best, Scorpios are fearless shadow-workers—unafraid to confront the hidden parts of themselves and the world.
Afflicted Sun or Moon
When the Sun or Moon—the luminaries—get hit with tough aspects from Saturn, Pluto, or Uranus, it often signals deep inner struggles. The Sun rules identity, vitality, and father figures; the Moon rules emotions, instincts, and the mother. When either is under pressure, it can shake self-confidence, emotional stability, and relationships.
Hard aspects to the Sun can create identity crises, authority issues, or tension with father figures/men. A challenged Moon can stir up mood swings, shaky instincts, or strained bonds with the mother or women.
Add in Pluto (power, control) or Saturn (fear, restriction), and the intensity multiplies. Pluto can breed obsession and dominance, while Saturn can create fear and frustration. Left unchecked, these dynamics may push someone toward darker, even sadistic behaviors.
Geminis, Pisces, or All of Them?
Sure, the most infamous and highly publicized serial killers often turn out to be Geminis, Pisces, or Virgos, but that doesn’t mean those signs own the darkness. If we stepped back from the big televised cases and looked at every serial killer worldwide, every sign would make the list.
At the end of the day, it’s never just the Sun sign. What matters is the whole chart: how the luminaries are aspected, what aspects the chart ruler makes, whether there are unaspected planets, and where the harsh dynamics lie. Sometimes, it’s not even the “hard” aspects that raise red flags—charts with nothing but easy aspects can be just as unpredictable. As the saying goes, “still waters run deep”—or in this case, silent waters can erode the shore.
