I have seen charts so far on him but they don't serve me much without an exact ascendant. There’s an immense amount of privilege to have access to your rising sign/birth time and it’s been years of history where there wasn’t special software and instant calculators and people used to do the math by hand. For those of us who approach astrology like a divine math, if someone’s exact birth time isn’t known (like Tyler Robinson), the proper method to work around that is birth time rectification. 

Rectification means:

• You look at major life events (like the day of the shooting, the day of his arrest, or big achievements such as starting college) and then compare those dates against his astrological transits.

• You pay special attention to big transits and progressions, especially ones involving outer planets or eclipses, because those usually mark life-changing events.

• Since the shooting happened around an eclipse in Pisces, that’s an extra signal for significant transits you’d expect to see affecting his chart.

• You can even compare his natal chart to the natal chart of Charlie Kirk himself.

That gives you multiple timestamps to cross-check until a rising sign emerges. It can get really forensic if you are a professional astrology that also approaches it with a certain level of academia. 

So in Tyler Robinson’s case:

• Day of shooting → Uranus, Pluto, Saturn, or eclipses hitting angles.
• Day of arrest → Mars, Saturn, or Pluto aspects.
• Public career milestones → Jupiter/Saturn cycles or eclipses tied to the MC.